Update 2022

I made some changes to the neslib and nesdoug library files.

There was a bug where, if you called one of the sprite functions at the exact end of the frame, it could have placed only half of a sprite’s data in the sprite buffer before the nmi sent it to the OAM RAM for the next frame. This could cause an incorrect sprite to be be shown.

The nmi code has been modified so that it will only DMA the OAM (sprite data) if you have reached the next ppu_wait_frame() or ppu_wait_nmi(). Now, a lag frame will just result in the previous frame being shown twice, with no changes.

Another change — I removed clear_vram_buffer(). I feel like this is something that should be done automatically, when the vram buffer is copied to the PPU. I have seen people confused as to when to use clear_vram_buffer(), so this should clear up any confusion, it will manage itself.

If you need clear_vram_buffer() for some reason, the code is still there, it’s just commented out (in nesdoug.h and nesdoug.s… and I removed the .export _clear_vram_buffer). You can easily put it back in.

And, I changed the name of flush_vram_update_nmi() to flush_vram_update2(). The name was misleading, the way I was using it — entirely outside of the nmi (ie. pushing updates to the PPU with the screen off).

One caution — split screens still can’t handle lag frames. If you are using a sprite zero split screen, make sure that the code isn’t so complex that it runs past the bottom of the frame. I suppose you could rewrite the nmi code (in assembly) and put the split screen code directly there, to fix it.

I did make sure that the MMC3 code can handle lag frames and do split screens. That is because you can handle the split with IRQs. The nmi code still runs the IRQ function on lag frames.

Minor change — I redid the Full BG and Fade examples. The code is the same, but I thought I could make it look nicer if I used the NESIFIER tool that I made.

old was

new is

More Tools.

Keep watching for updates.



Here’s another SNES tool that I made. It’s a copy of my previous map editor / tile editor / palette editor, except that this one targets the 256 color / 8bpp modes (Mode 3 and Mode 7).


There is also some example code in the folders that I used to test both modes.




I will write some more details a little later. Mode 7 is completely unlike the other modes, and will need some explanation. (TODO later)



Multiple functions:

-Add Echo to the SPC files exported by SNESGSS.
-Make Echo settings file for the nesdoug’s SNES dev music code
-Export BRR files from SPC files exported by SNESGSS.
(also error checks the settings)


(click on Releases to find the .exe)

Also see SNES example 13 to get the latest music.asm file



Now you can set all the echo parameters with one function. SPC_All_Echo

Just pass it a pointer to the 14 byte array that Echo4GSS makes (Settings/save Settings)

and it sets all the echo settings (and the main volume).

See mainB.asm (in SNES_13) for use. And the readme for Echo4GSS should explain it.

SNES main page

SNES Music 2

I added echo functions to SNESGSS.


Again, I only patched the SPC code. You will not notice anything different in the actual app, and you won’t be able to hear the echo effect in the app.

So, I wrote over the streaming functions so they now write to the echo registers. Don’t worry too much about the SPC code itself. When you export from snesgssQv2 it will output a spc700.bin file which will be copied to the Audio RAM on spc_init.

You need to include the newest music.asm file which has these new functions.




All these functions prefer 8 bit arguments, loaded into A and X, so it’s best to put AXY in 8 bit mode.


NOTE – use snesgssQv2. Version 1 has a bug, if you set a echo buffer size of zero, it will crash.



Sets the Echo Volume, and turns specific channels on or off. Probably, you should set the Echo Volume lower than the Main Volume.

A = volume 0-$7f (0 will turn off echo completely)

X = a bitfield (bit 0 = channel 0, bit 1 = channel 1, etc) 1 = on, 0 = off.


LDA #$50

LDX #$ff ;all channels on

JSL Echo_Vol


Sets the Echo Buffer Address, and how big it is ( controls the delay timing)

A = Echo Buffer location (times $100, and the low byte of the address will be 00)

X = Echo Delay 0-$0f (times $800 = buffer size)

A delay value of 0 does actually function and it writes a minimal number of values at the echo buffer address (I think it’s 4 bytes per channel, so 32 bytes total) but you probably don’t want to use such a short delay time. You will probably want to use values 1-5 for the delay ($800-$2800 byte buffer size).


LDA #$ef ;buffer at $ef00

LDX #$02 ;buffer size = $1000

JSL Echo_Addr

This setup will use $ef00-feff as the buffer.

!!! It is absolutely critical that your buffer address is set higher than everything else loaded to the SPC RAM, and that the buffer size isn’t larger than the remaining space. Also, you probably want to avoid the BOOTROM at $ffc0.

!!! You must have echo volume set to zero when making changes to the echo address. If echo volume is not zero, It can and will destroy all the SPC code/data and probably crash the game. Changing the echo address also takes a very long time, because the code does a mandatory wait loop to avoid this sort of failure. So, probably, you should set the address only once at the very beginning of starting the game.

The SNESGSS app has no way of warning you about your SPC files being in the same location as your echo buffer. You will have to manage this yourself, and make sure you don’t overlap them.


This sets the Echo Feedback Volume and the FIR filter settings. I recommend you don’t set the feedback above $60. It would be like putting a microphone directly in front of a speaker. A FIR filter controls how the echo is processed.

A = 0-3 to select a set of values for the FIR filter. I chose some popular ones.

a = 0 = simple echo = 7f 00 00 00 00 00 00 00
a = 1 = multi echo = 48 20 12 0c 00 00 00 00
a = 2 = low pass echo = 0c 21 2b 2b 13 fe f3 f9
a = 3 = high pass echo = 01 02 04 08 10 20 40 80

X = 0-$7f, the echo feedback volume


LDA #$00

LDX #$40

JSL Echo_Fb_Fir


After some consideration, I thought that someone might like to use a custom FIR filter. This could be accomplished by manually patching over the first FIR filter set, at SPC address $3aa (copy 8 bytes here). In the main.asm file, you will see some commented out code at line 180. It’s a bit complex, because patching like this is beyond what SNESGSS what intended to do. After overwriting the table, you have to call echo_fb_fir with A=0 to copy the table to the DSP FIR registers.

Here’s a link for more FIR examples


Turning Echo Off

In the example code, when you touch the yellow square, and it darkens the screen. I added a little bit of code here to also turn off the echo effect. You can do this any time.

lda #$00 ;echo volume off
ldx #$00 ;channels off
jsl Echo_Vol

You can also adjust the echo volume any time.

lda #$40 ;echo volume
ldx #$ff ;all channels
jsl Echo_Vol


Added Nov 6, 2021.

This function can change all the echo parameters (and the main volume). You need to pass it a pointer to the 14 byte array that Echo4GSS makes (Setting/Save Settings). You need the most current version of music.asm (should say ver 5). See this page for more details…

More Tools.


SPC_Init now can handle an spc700.bin file larger than $8000 (32768) bytes. Even though the spc700 is split accross 2 banks, it will wrap from ffff to 8000 in the next bank (with LOROM = 1 defined in music.asm).

It helps that I remembered that you can split a binary file using extra arguments on the .incbin line. If you look at the bottom of main.asm you see…

.incbin “MUSIC/spc700.bin”, 0, 32768


.incbin “MUSIC/spc700.bin”, 32768

The top one says copy 32768 bytes starting at 0. The second one (with 1 number) says to include from 32768 to the end of the file. The file is split across bank 6 and 7, but SPC_Init can copy the entire thing to the SPC RAM.


I retuned my samples to B+21, and that seems to help on looping samples. But, sometimes I had to crossfade the end point and the loop point. One important thing I learned, for looped samples. You need the end point a multiple of 16 samples and the loop point needs to be a multiple of 16 samples. This is just how BRR compression works. It’s always blocks of 16. Tuning to B+21 makes 16 samples line up much better, but it’s not necessary. I’ve seen samples tuned to F, or other keys. But the cross fading to the loop point is very helpful to create a clean loop (no click).

Here’s a link of me processing audio to work on the SNES.


I wanted to give a little more information about SNES Music. Open this link, and let’s review…


The SPC program needs to set DSP variables. Scroll down to “Registers”… these are addresses in the SPC RAM. F2 and F3 are for communicating with the DSP. First you set a DSP address at F2 and then you set the value at F3. Scroll down this link to “DSP Register Map”.

So there are 8 channels, each one has a set of variables. Channel #0 will use 00-09, channel #1 will use 10-19, channel #2 will use 20-29, etc. Volume, Pitch, ASDR. An important one here is called Source Number. That says “which BRR sample?” But how does it know where the samples are?

DSP register 5d is the Source Directory. Whatever value there (x $100) is our list of addresses to the BRR samples. So if the value of the Source Directory Register is 2, the DSP will look for the pointer table at $200. The table consists of 4 bytes per BRR sample, that’s 2 addresses, first the start of the BRR sample, then the loop point of the BRR sample.

So, let’s go back to the Source Number for each channel. That value is multiplied by 4 and added to the source directory base, to locate the BRR sample. Source Number #3, with Source Directory at 2, the pointers to that BRR sample will be at $200 + (3 x 4) = $20c.

If the value at $20c is $1234, then when it will start playing the BRR sample at SPC address $1234. When (if) the sample sees a “loop” in the header, it will look to $20e for the loop point to jump to.

A note is triggered with a KON and stopped with a KOFF signal.

BRR samples is a compression system that always uses blocks of 16 samples. There is a header byte and then 8 bytes of 2 samples per byte. That means a BRR file size will always be multiple of 9. If you find a sample somewhere that isn’t a multiple of 9, it probably has 2 bytes at the beginning of the file that indicates the loop point. You might have to delete those 2 bytes to get a BRR file to work with some of the BRR tools available.

There is no way to import a BRR into SNESGSS, but you can convert the BRR to WAV (with BRR Tools) and load that into SNESGSS.

Exporting an SPC from SNESGSS

See the “More Tools” page for the Echo4GSS app I made.

More Tools.

Interesting Side Note

SNESGSS files (GSM) are text files. They can be opened with a text editor (like Notepad++). This could be a way to copy a song from a one GSM file to another.


SNES main page


Hey, I made an app this week. It can convert an image into a 4 color NES palette image. It can also save as CHR and do different levels of dithering. It runs on Windows computers. It should run on non-Windows computers with MONO.


Load an image from file, or paste from the clipboard (should be 256×256 or smaller).

Press Auto Generate Palette (or select colors from the NES palette)…(or select colors directly from the image).

Then press “convert”. This is with dithering set to Floyd Steinberg.

And below is Bayer 8×8 positioned dithering.

You can also convert to grayscale first (press the “grayscale” button).

Above is the image converted and dithered in gray.

Sometimes the Auto Generate won’t give the colors you want. You will have to manually change one of the colors. (click on the NES palette, then a box).

And you can save this as an image or as a CHR file for NES game development (nesdev). You can open the CHR file with a CHR editor, like YY-CHR.

You don’t need to use “auto generate palette”. You can click on the NES palette, then a box. You can click on the image itself to pick a color, then a box. You can load a palette from file (12 byte RGB or 4 byte NES).

Terraria Review and Guide

My kids were in love with Minecraft. I bought them Terraria for Wii U because it’s sort of similar. After months of playing they finally got to hard mode (beating the wall of Flesh) but it was immediately way too hard for them and due to loss of data from unknown bugs… we gave up on that. But I decided to try the Nintendo Switch version. After about 6 months, we finally defeated the Moon Lord (final boss) this week.

My thoughts. It’s a very creative game. You can build your houses any way you want. Paint blocks different colors. Make your avatar look a 1000 different ways. Dye your armor different colors. Just endless customizations.

Gameplay is very fun, but hard. Many of the events are just 100s of enemies spawning endlessly. I did not like that. In other games there are a few well designed enemies that you have to learn their AI to defeat. This game is just “lets dump 100 pirates on you randomly”. And I mean randomly. Any random day could trigger these events. There is no way to trigger them or avoid them. The randomness is a bit frustrating.

Also frustrating is that there are always too many enemies on screen… all the time. You will be trying to build a sky bridge or dig for ore, and you can’t go 5 seconds without some thing annoying you. No matter how many harpies you kill.. you try to go back to building the bridge and 5 seconds later the screen is filled with damn harpies again.

Music. Decent. Sets the mood. Never annoying. I would call the regular BG music relaxing and peaceful.

Graphics. A bit underwhelming. They intentionally went with pixelated look, but some things look like too simple, and it comes across as mediocre.

Would I recommend the game? Yes if you have lots of time and like sandbox style building crafting games. Not recommended for kids under 10. It’s very hard at times. And there is teenage level humor. There is a fishing item called Master Bait. There is a magic book called the Golden Shower, that literally looks like a yellow stream of liquid. This is a game that will require lots of reading of wiki and watching YouTube tutorials to complete.

Game Tips

When the kids played on the Wii U, they had a hard time because they didn’t do any fishing, didn’t craft any potions, and didn’t build very good arenas. Boss fights are enormously easier if you do lots of preparations beforehand. You should always have regeneration potions, which you craft from mushrooms, daybloom, and bottled water. All easily obtainable at the start of the game, and can be crafted with a placed bottle (just an empty bottle placed on a table or platform). Also easy to make is ironskin potion…iron ore, daybloom, and bottled water.

Before every boss fight, take those potions, and eat some food (buy from traveling merchant) to get a well fed buff. Build an arena (big flat area with some platforms going accross) filled with campfires and heart lanterns and sunflowers and maybe a pool of honey. All for regeneration and sunflowers for speed boost. Also, have a stack of the best healing potions you can find.

Try to build the arena near the nurse. You can even build a little house next to the arena just for the nurse. She can heal you to full. But I’m getting ahead of myself…start over.

First priorities are to build the basic crafting stuff, and build some rooms to get NPCs to move in. Anvil. Workbench. Furnace. Wood and stone houses are easy to make. Then dig for hearts during the day and mana stars at night. While you are digging around get ores, make weapons, armor, etc. Tungsten and Silver is probably fine now. Then, once you have full hearts, start building a tower up to look for sky islands. You should have found a ton of rope (in chests) while looking for hearts, just build a big rope tower every 1/8th of the world and find the island with the Starfury sword. That will take you 90% through easy mode.

Go to the dungeon at night, fight the Skeletron (build an arena right there, and a house for the nurse). Now you can go in the dungeon, but it’s going to be hard. There are really good items in the chests here.

Go to the corruption / crimson and break 2 orbs (or hearts) and get the meteorite to fall. You can craft excellent easy mode armor with metorite, and a space gun.

The eye of Cthulhu will probably randomly show up some night. If not, you can find Suspicious Eyes in underground chests to spawn him (at night). Have an arena set up near your base for that.

You should fight the Eater of Worlds (easy) or Brain of Cthulhu (a bit hard) by breaking a 3rd orb / heart. The ore it drops and make a good pickax.

Immediately make a hellivator straight down the middle of the world, and dig for hellstone and obsidian and grab a hell forge. Make the best pre-hardmode weapons / armor / and pickax. If you found an Enchanted Boomerang, you can make a Flamarang with hellstone bars, which is nice. Or just a Flaming Greatsword is good.

Now sit back and build a nice house, go fishing, explore at a leisurely pace. The King Slime might show up, optional and easy boss. Goblins might attack, no problem. If you defeat them the Goblin Tinkerer will show up and you can buy Rocket Boots from him and the Tinkerer’s Workshop. When you get bored of Easy Mode, you can kill the Wall of Flesh to trigger hardmode to start. The Wall of Flesh shows up if a guide voodoo doll drops in the lava.

To defeat the Wall of Flesh, get 100+ beenades from fighting queen bees in the Jungle. You will probably have to make abeenimations to spawn queen bees and maybe do that 8-10 times. Also make a huge (half the world wide) platform all the way across the underworld. You will spend the entire fight running away from the wall of flesh.


The wall of flesh drops a Pwnhammer. Go to the Crimson / corruption and break as many altars as you can (12 or more). This will spawn hardmode ores. If you killed a nymph, you should have a metal detector to help you find them. Spend a lot of time getting hardmode ores. Build more houses for NPCs. Go fishing for hardmode ores in crates. You need to make full titanium armor and weapons (or adamantium). Craft a hardmode anvil. Make a Titanium Forge from a Hell Forge and Titanium Ore.

Now fight Wyverns and harpies forever until you can craft wings.

Pirates will show up some day, if you have full hearts. They are a pain in the ass. I like the Cutlass sword that the Captain drops, but it’s not useful against bosses (too short).

Now, the hardmode bosses are just insanely hard. Get a Daedalus Stormbow (Hallowed Mimics) and craft a ton of Holy Arrows 1000+. The Destroyer is the easiest. Key to that is to make a tall arena with several screens tall of platforms and have campfires and heart lanterns and sunflowers. Take a bunch of debuff potions and eat Pho before boss fights. Stay just out of range and shoot arrows. No problem.

The Twins and Skeletron Prime are very hard. Same arena and same weapon, Daedalus Stormbow, just move up and down and shoot arrows, and heal up, keep moving to avoid getting hit. Skeletron Prime… just avoid that spinning head of spikes. The Twins, kill the laser eye first. Try to avoid getting hit with the green vomit from the other eye.

Now Plantera bulbs will start to form. Make an arena in the jungle and a house for the nurse. Keep moving in circles and be aggressive. Once Plantera is killed, Cholophyte will start growing a lot more. Collect a ton of it and make armor. If you are lucky, you can get turtle shells from Giant Tortoises and make turtle armor, later converted to beetle armor (you get beetle shells dropped from the Golem). Also grab heart fruit to get max health.

Plantera should drop a temple key. Go in the Golem Temple and defeat Golem (probably the easiest hardmode boss fight). This triggers the Lunatic Cultists to spawn at the dungeon entrance. This is a much harder fight. You need a really good arena with a house for the nurse. The Golem Temple had solar tablet fragments in chests, you should trigger several solar eclipse events and get Death Sickles from Reapers which I think is excellent against the Lunatic Cultists. You can get Broken Hero Swords from Mothrons too, and craft a Terra Blade. There is a very complicated crafting tree for the Terra Blade, so you could skip this altogether.

Make sure you reforge these weapons from the Goblin Tinkerer. Solar Eclipse events are great for getting gold to do that.

Fight the Cultists and win. They drop the ancient manipulator crafting station (very important). Defeating the Cultists spawns 4 celestial pillars in the world. Go for the solar one (red). Kill 100 solar enemies and the pillar, and get the solar fragments. You can now make the weapon you need to defeat the Moon Lord, the Solar Eruption. Save up the rest of the pillar drops to make super healing potions. Also make a Stardust Dragon Staff with the stardust fragments. This summons an excellent minion that helps fight the Moon Lord.

Once the 4th pillar is defeated, the Moon Lord will spawn in 1 minute. Wait until you have everything you can imagine set up before defeating this last pillar. I had a very small arena with a pool of honey, and with 2 heart statues (I found them in the dungeon) set up with timers. Heart lantern and campfire. Took a bunch of potions – regeneration, ironskin, wrath, etc. Ate some Pho to get well fed buff. In the end, I just stood still and wacked away with the Solar Eruption (Demonic modifier) and healed (I had the Charm of Myths to reduce potion sickness time). Moon Lord is dead.

I guess I never fought Duke Fishron. I don’t really want to. You can also summon special Halloween and Christmas events (optional) and the Old Ones Army event (also optional). It’s just more “dump 100 enemies on you at once” things. Not my thing.

I probably forgot a whole bunch of things. This post was off the top of my head and not planned out.

Anyway, since I am an amateur game designer, I was planning on making a game inspired by Terraria. But, 2020 has been insane, so maybe in 2021 or 2022 I will get started on that. One thing’s for sure, my version will have less random enemies bothering you. That pirate attack is just awful. Don’t get me started.

Other great weapons… Star Cannon. Minishark and Megashark. Anything from the Celestial Pillars and Moon Lord Fight are great. Oh, I did forget the Alien Invasion (Martian Madness) event. It can happen if you defeated the Golem, and get scanned by an alien ship. That drops some great items, like a Spaceship mount (Cosmic Car Key). I don’t know. Maybe I should do the Halloween and Christmas events and see if they drop anything cool.

Lists of NES games

I am frequently looking this stuff up, so I decided to just post the lists here. Sources BootGod and Wikipedia.

US NES games

(minus the prototypes and duplicates)

10-Yard Fight
1943: The Battle of Midway
3-D Battles of Worldrunner, The
6 in 1
8 Eyes
Abadox: The Deadly Inner War
Action 52
Addams Family, The
Addams Family, The: Pugsley’s Scavenger Hunt
Adventure Island
Adventure Island II
Adventure Island III
Adventures in the Magic Kingdom, Disney’s
Adventures of Bayou Billy, The
Adventures of Dino Riki
Adventures of Gilligan’s Island, The
Adventures of Lolo
Adventures of Lolo 2
Adventures of Lolo 3
Adventures of Rad Gravity, The
Adventures of Rocky and Bullwinkle and Friends, The
Adventures of Tom Sawyer
After Burner
Air Fortress
Al Unser Jr. Turbo Racing
Alfred Chicken
Alien Syndrome
All-Pro Basketball
Alpha Mission
American Gladiators
Arch Rivals: A Basketbrawl!
Arkista’s Ring
Athletic World
Attack of the Killer Tomatoes
Baby Boomer
Back to the Future
Back to the Future II & III
Bad Dudes
Bad News Baseball
Bad Street Brawler
Balloon Fight
Bandai Golf: Challenge Pebble Beach
Bandit Kings of Ancient China
Barbie (RevA)
Bard’s Tale, The: Tales of the Unknown
Barker Bill’s Trick Shooting
Base Wars: Cyber Stadium Series
Baseball Simulator 1.000
Baseball Stars
Baseball Stars II
Bases Loaded (RevA)
Bases Loaded 3, Ryne Sandberg Plays
Bases Loaded 4
Bases Loaded II: Second Season
Batman Returns
Batman: Return of the Joker
Battle Chess
Battle of Olympus, The
Battle Tank, Garry Kitchen’s
Battletoads & Double Dragon: The Ultimate Team
Bee 52
Best of the Best: Championship Karate
Bible Adventures (Ver1.4)
Bible Buffet (Ver6.0)
Big Nose Freaks Out
Big Nose the Caveman
Bill & Ted’s Excellent Video Game Adventure
Bill Elliott’s NASCAR Challenge
Bionic Commando
Black Bass, The
Blades of Steel
Blaster Master
Blue Marlin, The
Blues Brothers, The
Bo Jackson Baseball
Bomberman II
Bonk’s Adventure
Boulder Dash
Boy and His Blob, A: Trouble on Blobolonia, David Crane’s
Bram Stoker’s Dracula
Break Time: The National Pool Tour
Bubble Bath Babes
Bubble Bobble
Bubble Bobble: Part 2
Bucky O’Hare
Bugs Bunny Birthday Blowout, The
Bugs Bunny Crazy Castle, The
Bump ‘n’ Jump
Burai Fighter
Caesars Palace
California Games
Capcom’s Gold Medal Challenge ’92
Captain America and the Avengers
Captain Comic: The Adventure
Captain Planet and the Planeteers
Captain SkyHawk
Casino Kid
Casino Kid II
Castle of Deceit
Castle of Dragon
Castlevania II: Simon’s Quest
Castlevania III: Dracula’s Curse
Caveman Games
Challenge of the Dragon
Championship Bowling
Championship Pool
Chessmaster, The
Chiller (CHR-CB55)
Chip ‘n Dale Rescue Rangers 2, Disney’s
Chip ‘n Dale Rescue Rangers, Disney’s
Chubby Cherub
Circus Caper
City Connection
Clash At Demonhead
Classic Concentration
Clu Clu Land
Cobra Command
Cobra Triangle
Code Name: Viper
Color A Dinosaur
Conquest of the Crystal Palace
Contra Force
Cool World
Cowboy Kid
Crash ‘n The Boys: Street Challenge
Crystal Mines
Cybernoid: The Fighting Machine
Dance Aerobics
Darkwing Duck, Disney’s
Dash Galaxy in the Alien Asylum
Day Dreamin’ Davey
Days of Thunder
Deadly Towers
Death Race
Defender II
Defender of the Crown
Defenders of Dynatron City
Déjà Vu
Demon Sword
Desert Commander
Destination Earthstar
Destiny of an Emperor
Dick Tracy
Die Hard
Dig Dug II: Trouble in Paradise
Digger T. Rock: The Legend of the Lost City
Dirty Harry
Dizzy The Adventurer
Donkey Kong (RevA)
Donkey Kong 3
Donkey Kong Classics
Donkey Kong Jr. (RevA)
Donkey Kong Jr. Math
Double Dare
Double Dragon
Double Dragon II: The Revenge (RevA)
Double Dragon III: The Sacred Stones
Double Dribble (RevA)
Double Strike (Ver1.1)
Dr. Chaos
Dr. Jekyll and Mr. Hyde
Dr. Mario
Dragon Fighter
Dragon Power
Dragon Spirit: The New Legend
Dragon Warrior (RevA)
Dragon Warrior II
Dragon Warrior III (Rev0B)
Dragon Warrior IV
Dragon’s Lair
DragonStrike, Advanced Dungeons & Dragons
Duck Hunt
DuckTales 2, Disney’s
DuckTales, Disney’s
Dudes with Attitude
Dungeon Magic: Sword of the Elements
Dusty Diamond’s All-Star Softball
Dynowarz: The Destruction of Spondylus
Elevator Action
Eliminator Boat Duel
Exodus: Journey to the Promised Land (Ver4.0)
F-117a Stealth Fighter
F-15 City War (Ver1.1)
F-15 Strike Eagle
Family Feud, The All New
Fantastic Adventures of Dizzy, The
Fantasy Zone
Faxanadu (RevA)
Felix the Cat
Ferrari Grand Prix Challenge
Fester’s Quest
Final Fantasy
Fire Hawk
Fire’n Ice
Fisher-Price: Firehouse Rescue
Fisher-Price: I Can Remember
Fisher-Price: Perfect Fit
Fist of the North Star
Flight of the Intruder
Flintstones, The: The Rescue of Dino & Hoppy
Flintstones, The: The Surprise at Dinosaur Peak!
Flying Dragon: The Secret Scroll
Flying Warriors
Formula One: Built to Win
Fox’s Peter Pan & The Pirates: The Revenge of Captain Hook
Frankenstein: The Monster Returns
Freedom Force
Friday the 13th
Fun House
G.I. Joe
G.I. Joe: The Atlantis Factor
Galactic Crusader
Galaga: Demons of Death
Galaxy 5000: Racing in the 51st Century
Game Genie (Rev1.5A)
Gargoyle’s Quest II
Gauntlet II
Genghis Khan
George Foreman’s KO Boxing
Ghostbusters II
Ghosts ‘n Goblins
Ghoul School
Goal! Two
Godzilla 2: War of the Monsters
Godzilla: Monster of Monsters!
Golf Grand Slam
Golgo 13: The Mafat Conspiracy
Golgo 13: Top Secret Episode
Goonies II, The
Gotcha! The Sport!
Great Waldo Search, The
Greg Norman’s Golf Power
Gremlins 2: The New Batch
Guardian Legend, The
Guerrilla War
Gun Nac
Harlem Globetrotters
Heavy Barrel
Heavy Shreddin’
Heroes of the Lance, Advanced Dungeons & Dragons
High Speed
Hillsfar, Advanced Dungeons & Dragons
Hogan’s Alley
Hollywood Squares
Home Alone (RevA)
Home Alone 2: Lost in New York
Hudson Hawk
Hunt for Red October, The (RevA)
Ice Climber
Ice Hockey
Ikari Warriors
Ikari Warriors II: Victory Road
Ikari Warriors III: The Rescue
Image Fight
Immortal, Will Harvey Presents The
Impossible Mission-II
Incredible Crash Dummies, The
Indiana Jones and The Last Crusade (Taito)
Indiana Jones and The Last Crusade (UBI Soft)
Indiana Jones and the Temple of Doom (Mindscape)
Indiana Jones and the Temple of Doom (Tengen)
Indy Heat, Danny Sullivan’s
Iron Tank: The Invasion of Normandy
IronSword: Wizards & Warriors II
Isolated Warrior
Jack Nicklaus’ Greatest 18 Holes of Major Championship Golf
Jackie Chan’s Action Kung Fu
James Bond Jr.
Jeopardy! (RevA)
Jeopardy!: 25th Anniversary Edition
Jeopardy!: Junior Edition
Jetsons, The: Cogswell’s Caper
Jimmy Connors Tennis
Joe & Mac
John Elway’s Quarterback
Jordan vs. Bird: One on One
Joshua & the Battle of Jericho (Ver6.0)
Journey to Silius
Jungle Book, Disney’s The
Jurassic Park
Kabuki: Quantum Fighter
Karate Champ (RevA)
Karate Kid, The
Kick Master
Kickle Cubicle
Kid Icarus
Kid Klown in Night Mayor World
Kid Kool and the Quest for the Seven Wonder Herbs
Kid Niki: Radical Ninja (RevA)
King Neptune’s Adventure
King of Kings, The: The Early Years (Ver1.2)
King’s Knight
King’s Quest V
Kings of the Beach
Kirby’s Adventure (RevA)
Kiwi Kraze: A Bird-Brained Adventure!
Knight Rider
Krazy Kreatures (Ver1.1)
Krion Conquest, The
Krusty’s Fun House
Kung Fu
Kung-Fu Heroes
Laser Invasion
Last Action Hero
Last Ninja, The
Last Starfighter, The
Lee Trevino’s Fighting Golf
Legacy of the Wizard
Legend of Kage, The
Legend of the Ghost Lion
Legend of Zelda, The (RevA)
Legendary Wings
Legends of the Diamond: The Baseball Championship Game
Lethal Weapon
Life Force (Rev0A)
Linus Spacehead’s Cosmic Crusade
Little League Baseball Championship Series
Little Mermaid, Disney’s The
Little Nemo: The Dream Master
Little Ninja Brothers
Little Samson
Lode Runner
Lone Ranger, The
Low G Man: The Low Gravity Man
Lunar Pool
M.C. Kids
M.U.S.C.L.E.: Tag Team Match
Mach Rider
Mad Max
Magic Darts
Magic Johnson’s Fast Break
Magic of Scheherazade, The
Major League Baseball (RevA)
Maniac Mansion
Marble Madness
Mario Bros.
Mario Is Missing!
Mario’s Time Machine
Master Chu and the Drunkard Hu
Maxi 15
Mechanized Attack
Mega Man
Mega Man 2
Mega Man 3
Mega Man 4 (RevA)
Mega Man 5
Mega Man 6
Menace Beach
Mendel Palace
Mermaids of Atlantis: The Riddle of the Magic Bubble
Metal Fighter
Metal Gear
Metal Mech: Man & Machine
Metal Storm
Michael Andretti’s World GP
Mickey Mousecapade
Mickey’s Adventure in Numberland
Mickey’s Safari in Letterland
Micro Machines
MIG-29 Soviet Fighter
Might and Magic: Secret of the Inner Sanctum
Mighty Bomb Jack
Mighty Final Fight
Mike Tyson’s Punch-Out!! (RevA)
Milon’s Secret Castle
Miracle Piano Teaching System, The
Mission Cobra
Mission: Impossible
Monster In My Pocket
Monster Party
Monster Truck Rally
Moon Ranger
Motor City Patrol
Ms. Pac-Man (Namco)
Ms. Pac-Man (Tengen)
MTV’s Remote Control
Muppet Adventure: Chaos at the Carnival
Mutant Virus, The: Crisis in a Computer World
Mystery Quest
NES Open Tournament Golf
NES Play Action Football
Nigel Mansell’s World Championship Racing
Nightmare on Elm Street, A
Ninja Crusaders
Ninja Gaiden
Ninja Gaiden II: The Dark Sword of Chaos
Ninja Gaiden III: The Ancient Ship of Doom
Ninja Kid
Nintendo World Championships 1990
Nintendo World Cup
Nobunaga’s Ambition
Nobunaga’s Ambition II
North & South
NTF2 System Cartridge
Operation Secret Storm
Operation Wolf: Take no Prisoners (Rev0A)
Orb 3-D
P’radikus Conflict
P.O.W.: Prisoners of War
Pac-Man (Tengen)
Pac-Man (Namco)
Panic Restaurant
Paperboy 2
Phantom Fighter
Pinball Quest
Pipe Dream
Platoon (RevA)
Pool of Radiance, Advanced Dungeons & Dragons
Popeye (RevA)
Power Blade
Power Blade 2
Power Punch II
Prince of Persia
Princess Tomato in the Salad Kingdom
Pro Sport Hockey
Pro Wrestling (RevA)
Punisher, The
Puss ‘n Boots: Pero’s Great Adventure
Quattro Adventure
Quattro Arcade
Quattro Sports
R.B.I. Baseball
R.B.I. Baseball 2
R.B.I. Baseball 3
R.C. Pro-Am (RevA)
R.C. Pro-Am II
Race America, Alex DeMeo’s
RacerMate Challenge II (9.03.128)
Racket Attack
Rad Racer
Rad Racer II
Rad Racket: Deluxe Tennis II
Raid 2020
Raid on Bungeling Bay
Rainbow Islands
Rally Bike
Ren & Stimpy Show, The: Buckeroo$!
Rescue: The Embassy Mission
Ring King
River City Ransom
Road Runner
Robin Hood: Prince of Thieves
Robo Warrior
RoboCop 2 (RevA)
RoboCop 3
Rock’n’ Ball
Rocket Ranger
Rocketeer, The
Rockin’ Kats
Roger Clemens’ MVP Baseball
Rollerblade Racer
Rolling Thunder
Romance of the Three Kingdoms
Romance of the Three Kingdoms II
Roundball: 2-on-2 Challenge
Rush’n Attack
Rygar (RevA)
S.C.A.T.: Special Cybernetic Attack Team
Secret Scout in the Temple of Demise
Section Z
Sesame Street 123
Sesame Street ABC
Sesame Street ABC & 123
Sesame Street Countdown
Sesame Street: Big Bird’s Hide and Speak
Shadow of the Ninja
Shingen The Ruler
Shooting Range
Short Order / Eggsplode!
Side Pocket
Silent Assault
Silent Service (RevA)
Silver Surfer
Simpsons, The: Bart vs. The Space Mutants
Simpsons, The: Bart vs. The World
Simpsons, The: Bartman Meets Radioactive Man
Skate or Die 2: The Search for Double Trouble
Skate or Die!
Ski or Die
Skull & Crossbones
Sky Kid
Sky Shark (Rev0A)
Smash T.V.
Snake Rattle ‘n Roll
Snake’s Revenge
Snoopy’s Silly Sports Spectacular!
Snow Brothers
Solar Jetman: Hunt for the Golden Warpship
Solitaire (Ver1.1)
Solomon’s Key
Solstice: The Quest for the Staff of Demnos
Space Shuttle Project
Spider-Man: Return of the Sinister Six
Spiritual Warfare (Ver6.1)
Spy Hunter
Spy vs. Spy
Stadium Events
Stanley: The Search for Dr. Livingston
Star Force
Star Soldier
Star Trek: 25th Anniversary
Star Trek: The Next Generation
Star Voyager
Star Wars
Star Wars: The Empire Strikes Back
Starship Hector
Stealth ATF
Street Cop
Street Fighter 2010: The Final Fight
Stunt Kids
Sunday Funday: The Ride
Super C
Super Cars
Super Dodge Ball
Super Glove Ball
Super Jeopardy!
Super Mario Bros.
Super Mario Bros. / Duck Hunt
Super Mario Bros. / Duck Hunt / World Class Track Meet
Super Mario Bros. 2 (RevA)
Super Mario Bros. 3
Super Off Road, Ivan “Ironman” Stewart’s
Super Pitfall
Super Spike V’Ball
Super Spike V’Ball / Nintendo World Cup
Super Sprint
Super Spy Hunter
Super Team Games
Swamp Thing
Sword Master
Swords and Serpents
T&C Surf Designs 2: Thrilla’s Surfari
T&C Surf Designs: Wood and Water Rage
T2: Terminator 2: Judgment Day
Taboo: The Sixth Sense
Tag Team Wrestling
Tagin’ Dragon
TaleSpin, Disney’s
Target: Renegade
Tecmo Baseball
Tecmo Bowl
Tecmo Cup: Soccer Game
Tecmo NBA Basketball
Tecmo Super Bowl
Tecmo World Wrestling
Teenage Mutant Ninja Turtles
Teenage Mutant Ninja Turtles II: The Arcade Game
Teenage Mutant Ninja Turtles III: The Manhattan Project
Teenage Mutant Ninja Turtles: Tournament Fighters
Terminator, The
Terra Cresta
Tetris (Nintendo)
Tetris (Tengen)
Tetris 2
Three Stooges, The
Thunder & Lightning
Tiles of Fate
Time Lord
Times of Lore
Tiny Toon Adventures
Tiny Toon Adventures 2: Trouble in Wackyland
Tiny Toon Adventures: Cartoon Workshop
To The Earth
Tom & Jerry
Tombs and Treasure
Top Gun
Top Gun: The Second Mission
Top Players’ Tennis, Chris Evert & Ivan Lendl in
Total Recall
Totally Rad
Touchdown Fever
Toxic Crusaders
Track & Field
Track & Field II (RevA)
Treasure Master
Trolls on Treasure Island
Twin Cobra
Twin Eagle
Ultima: Exodus
Ultima: Quest of the Avatar
Ultima: Warriors of Destiny
Ultimate Air Combat
Ultimate Basketball
Ultimate League Soccer
Ultimate Stuntman, The
Uncanny X-Men, The
Uncharted Waters
Untouchables, The (RevA)
Urban Champion
Vegas Dream
Venice Beach Volleyball
Vice: Project Doom
Wacky Races
Wall Street Kid
Wally Bear and the No! Gang
Wario’s Woods
Wayne Gretzky Hockey
Wayne’s World
WCW World Championship Wrestling
Werewolf: The Last Warrior
Wheel of Fortune
Wheel of Fortune featuring Vanna White
Wheel of Fortune: Family Edition
Wheel of Fortune: Junior Edition
Where in Time is Carmen Sandiego?
Where’s Waldo?
Who Framed Roger Rabbit
Whomp ‘Em
Wild Gunman
Win, Lose or Draw
Winter Games (RevA)
Wizardry: Knight of Diamonds
Wizardry: Proving Grounds of the Mad Overlord
Wizards & Warriors
Wizards & Warriors III
World Champ
World Class Track Meet
World Games
Wrath of the Black Manta (RevA)
Wrecking Crew
WURM: Journey to the Center of the Earth
WWF King of the Ring
WWF WrestleMania
WWF WrestleMania Challenge
WWF WrestleMania: Steel Cage Challenge
Xevious: The Avenger
Yo! Noid
Yoshi’s Cookie
Young Indiana Jones Chronicles, The
Zelda II: The Adventure of Link
Zen: Intergalactic Ninja
Zoda’s Revenge: StarTropics II
Zombie Nation

European PAL Exclusive NES Games

Aussie Rules Footy
Banana Prince
Championship Rally
Devil World
Disney’s Aladdin
Disney’s Beauty and the Beast
Disney’s The Lion King
Formula One Sensation
Hammerin’ Harry
International Cricket
Kick Off
Konami Hyper Soccer
The Legend of Prince Valiant
Les Chevaliers du Zodiaque : La Légende d’or
Mario Bros. (Classic Series)
Mr. Gimmick!
New Ghostbusters II
Noah’s Ark
Over Horizon
Parasol Stars: Rainbow Islands II
Rackets & Rivals
Rainbow Islands: Bubble Bobble 2
Road Fighter
Rod Land
The Smurfs
Super Mario Bros./Tetris/Nintendo World Cup
Super Turrican
Tecmo World Cup Soccer
The Trolls in Crazyland
Ufouria: The Saga

Japanese / Famicom Games

Note: Airwolf, Star Wars, and Tetris are different from the US versions.

’89 Dennou Kyuusei Uranai
10-Yard Fight
1943: The Battle of Valhalla
2010 Street Fighter
4 Nin Uchi Mahjong
8 Eyes
A Ressha de Ikou
A Week of Garfield
Aa Yakyu Jinsei Itchokusen
Abarenbou Tengu
Aces: Iron Eagle III
Advanced Dungeons & Dragons: Dragons of Flame
Advanced Dungeons & Dragons: Heroes of the Lance
Advanced Dungeons & Dragons: Hillsfar
Advanced Dungeons & Dragons: Pool of Radiance
Adventures of Lolo
Adventures of Lolo 2
After Burner
Ai Sensei no Oshiete: Watashi no Hoshi
Aigiina no Yogen: From the Legend of Balubalouk
Air Fortress
Akagawa Jirou no Yuurei Ressha
Akuma no Shoutaijou
Akuma-kun: Makai no Wana
Akumajou Densetsu
Akumajou Dracula
Akumajou Special: Boku Dracula Kun
Alien Syndrome
America Daitoryo Senkyo
America Oudan Ultra Quiz: Shijou Saidai no Tatakai
American Dream
Ankoku Shinwa: Yamato Takeru Densetsu
Antarctic Adventure
Aoki Ookami to Shiroki Mejika: Genchou Hishi
Aoki Ookami to Shiroki Mejika: Genghis Khan
Arabian Dream Scheherazade
Argos no Senshi
Arkanoid II
Asmik-kun Land
ASO: Armored Scrum Object
Astro Fang: Super Machine
Astro Robo Sasa
Atlantis no Nazo
Attack Animal Gakuen
Babel no Tou
Baken Hisshou Gaku: Gate In
Bakusho! Ai no Gekijo
Bakushou!! Jinsei Gekijou
Bakushou!! Jinsei Gekijou 2
Bakushou!! Jinsei Gekijou 3
Bakusho! Star Monomane Shitenno
Balloon Fight
Bananan Ouji no Daibouken
Barcode World
Bard’s Tale: Tales of the Unknown
The Bard’s Tale II: The Destiny Knight
Baseball Fighter
Baseball Stars: Mezase Sankanou!!
Bats & Terry
Battle Baseball
Battle City
Battle Fleet
Battle Formula
Datach: Battle Rush: Build Up Robot Tournament
Battle Stadium: Senbatsu Pro Yakyuu
Battle Storm
Be-Bop High School: Koukousei Gokuraku Densetsu
Best Keiba: Derby Stallion
Best Play Pro Yakyuu
Best Play Pro Yakyuu II
Best Play Pro Yakyuu ’90
Best Play Pro Yakyuu Shin Data
Best Play Pro Yakyuu Special
Bikkuri Nekketsu Shin Kiroku! Harukanaru Kin Medal
Bikkuriman World: Gekitou Sei Senshi
Binary Land
Bio Miracle Bokutte Upa
Bio Senshi Dan: Increaser to no Tatakai
Bird Week
The Black Bass
The Black Bass 2
Block Set (Rob the Robot and Stack-Up “Block”)
Blodia Land: Puzzle Quest
Bloody Warriors: Shan-Go no Gyakushuu
Blue Marlin, The
Bokosuka Wars
Bomber King
Bomberman II
Booby Kids
Boulder Dash
Bubble Bobble 2
Bucky O’Hare
Buggy Popper
Burai Fighter
Business Wars
Capcom Barcelona ’92
Captain Ed
Captain Saver
Captain Silver
Captain Tsubasa
Captain Tsubasa Vol. II: Super Striker
Casino Derby & Super Bingo
Castle Excellent
Castle Quest
Chack’n Pop
Championship Bowling
Championship Lode Runner
Chaos World
Chester Field: Ankoku Shin e no Chosen
Chibi Maruko-Chan: Uki Uki Shopping
Chiisana Obake: Achhi Sochhi Kocchi
Chiki Chiki Machine Mou Race
Chip to Dale no Daisakusen
Chip to Dale no Daisakusen 2
Chitei Senkou Bazolder
Chiyonofuji no Oicho
Chou-Wakusei Senki MetaFight
Choujikuu Yousai Macross
Chojin Sentai Jetman
Choujin Ultra Baseball
Choujinrou Senki Warwolf
Chuugoku Janshi Story: Tonpuu
Chuugoku Senseijutsu
Chuuka Taisen
Circus Charlie
City Adventure Touch: Mystery of Triangle
City Connection
Clu Clu Land
Cobra Command
Columbus: Ougon no Yoake
Cosmic Epsilon
Cosmic Wars
Cosmo Genesis
Cosmo Police Galivan
Crayon Shin-Chan: Ora to Poi Poi
Crazy Climber
Crisis Force
Cross Fire
Cycle Race: Road Man
Dai-2-Ji Super Robot Taisen
Daikaijyu Deburasu
Daikoukai Jidai
Daiku no Gen-San
Daiku no Gen-San 2
Dai Meiro – Meikyuu no Tatsujin
Dark Lord
Dash Yarou
Datach Crayon Shin-Chan: Ora to Poi Poi
Deep Dungeon III
Deep Dungeon IV
Deja Vu
Dengeki Big Bang!
Densetsu no Kishi Elrond
Derby Stallion Zengokuban
Devil World
Die Hard
Dig Dug
Dig Dug II
Digital Devil Monogatari Megami Tensei
Digital Devil Monogatari: Megami Tensei II
Doki! Doki! Yuenchi: Crazy Land Daisakusen
Dokuganryu Masamune
Don Doko Don
Don Doko Don 2
Donald Duck
Donald Land
Donkey Kong
Donkey Kong 3
Donkey Kong Jr. Math
Donkey Kong Jr.
Door Door
Doraemon: Giga Zombie no Gyakushu
Double Dragon
Double Dragon II: The Revenge
Double Dragon III: The Rosetta Stone
Double Moon Densetsu
Dough Boy
Downtown Nekketsu Koushinkyoku: Soreyuke Daiundoukai
Downtown Nekketsu Monogatari
Downtown Special: Kunio-kun no Jidaigeki Dayo Zenin Shuugou! 
Dr. Mario
Dragon Ball 3: Gokuuden
Dragon Ball Z
Dragon Ball Z Side Story: Plan to Eradicate the Saiyans
Dragon Ball Z II: Gekishin Freeza
Dragon Ball Z III: Ressen Jinzou Ningen
Datach: Dragon Ball Z: Gekitou Tenkaichi Budokai
Dragon Ball: Daimaou Fukkatsu
Dragon Ball: Shenron no Nazo
Dragon Buster
Dragon Buster II
Dragon Fighter
Dragon Ninja
Dragon Quest
Dragon Quest II: Gods of the Evil Spirits
Dragon Quest III: And thus into Legend…
Dragon Quest IV: The Guided Ones
Dragon Scroll
Dragon Slayer IV: Drasle Family
Dragon Slayer Jr.: Romancia
Dragon Spirit: Aratanaru Densetsu
Dragon Unit
Dragon Wars
Dragon’s Lair
Dream Master
Duck Hunt
DuckTales 2
Dungeon Kid
Dungeon & Magic: Sword of Element
Dynamite Batman
Dynamite Bowl
Eggerland: Meikyu no Fukkatsu
Elevator Action
Elnark no Zaihou
Emoyan no 10-bai Pro Yakyuu
Erika to Satoru no Yume Boken
Esper Boukentai
Esper Dream 2
Exciting Boxing
Exciting Rally
Exed Exes
F-1 Hero 2, Nakajima Satoru Kanshuu
F1 Circus
F-1 Sensation
F-1 Race
Famicom Igo Nyuumon
Famicom Jump: Hero Retsuden
Famicom Jump II: The Strongest Seven
Famicom Meijinsen
Famicom Shougi: Ryuu-Ou-Sen
Famicom Top Management
Famicom Wars
Famicom Yakyuuban
Family Block
Family Boxing
Family Circuit
Family Circuit ’91
Family Computer Othello
Family Jockey
Family Mahjong
Family Mahjong II: Shanghai he no Michi
Family Pinball
Family Quiz
Family Tennis
Family Trainer: Aerobics Studio
Family Trainer: Athletic World
Family Trainer: Daiundokai
Family Trainer: Fuuun! Takeshi Shiro 2
Family Trainer: Jogging Race
Family Trainer: Manhattan Police
Family Trainer: Meiro Daisakusen
Family Trainer: Rai Rai! Kyonshizu: Baby Kyonshi no Amida Daibouken
Family Trainer: Running Stadium
Family Trainer: Totsugeki! Fuuun Takeshi Shiro
Famista ’89 Kaimaku Ban!!
Famista ’90
Famista ’91
Famista ’92
Famista ’93
Famista ’94
Fantasy Zone
Fantasy Zone 2: The Teardrop of Opa-Opa
Faria Fuuin no Tsurugi
FC Genjin
Field Combat
Fighting Golf
Fighting Road
Final Fantasy
Final Fantasy I+II
Final Fantasy II
Final Fantasy III
Final Lap
Final Mission
Fire Emblem: Shadow Dragon and the Blade of Light
Fire Emblem Gaiden
Fleet Commander
Flintstones: The Rescue of Dino and Hoppy
Flying Hero
Formation Z
Front Line
Fudou Myououden
Fushigi na Blobby
Fushigi no Umi no Nadia
Fuzzical Fighter
Gambler Jiko Chuushinha
Gambler Jiko Chuushinha 2
Game Party
Ganbare Goemon! Karakuri Dochu
Ganbare Goemon 2
Ganbare Goemon Gaiden: Kieta Ougon Kiseru
Ganbare Goemon Gaiden 2
Ganbare Pennant Race!
Ganso Saiyuki: Super Monkey Daiboken
Gegege no Kitaro: Youkai Daimakyou
Gegege no Kitaro 2
Gekikame Ninja Den (= TMNT)
Gekitotsu Shiku Battle
Gekitou Pro Wrestling!! Toukon Densetsu
Gekitou!! Stadium
Genpei Toma Den
Getsu Fuma Den
Gimme a Break: Shijou Saikyou no Quiz Ou Ketteisen
Gimme a Break: Shijou Saikyou no Quiz Ou Ketteisen 2
Ginga Eiyuu Densetsu
Ginga no Sannin
Goal !!
God Slayer: Haruka Tenku no Sonata
Gojira (Godzilla)
The Golf ’92
Golf Club: Birdie Rush
Golf Grand Slam
Golf-kko Open
Golgo 13: Kamigami no Koukon
Golgo 13 II
Gomoku Narabe Renju
Goonies II: Fratelli Saigo no Chousen
Gorby no Pipeline Daisakusen
Gorilla Man
Gozonji Yajikitatin Douchuu
Gradius II
Grand Master
Great Battle Cyber
Great Boxing – Rush Up
Great Deal
Great Tank
Gremlins 2: The New Batch
Guardic Gaiden
GunHed: Aratanaru Tatakai
Gun Sight
Gyro (Gyromite)
Haja No Fuuin: Miracle Warriors
Hana no Star Kaidou
Hanjuku Hero
Happy Birthday Bugs
Hayauchi Super Igo
Heavy Barrel
Hector ’87
Heisei Tensai Bakabon
Hello Kitty no Hanabatake
Hello Kitty World
Heracles no Eikou: Toujin Makyouden
Heracles no Eikou II: Titan no Metsubou
Hi no Tori Hououhen: Gaou no Bouken
Higemaru Makaijima – Nanatsu no Shima Daiboken
Highway Star
Hirake! Ponkikki
Hiryu no Ken
Hiryu no Ken II
Hiryu no Ken III: 5 Nin no Ryuu Senshi
Hiryu no Ken Special: Fighting Wars
Hissatsu Doujou Yaburi
Hissatsu Shigotojin
Hitler no Fukkatsu: Top Secret
Hogan’s Alley
Hokkaidou Rensa Satsujin: Ohotsuku ni Kiyu
Hokuto no Ken
Hokuto no Ken 2
Hokuto no Ken 3
Hokuto no Ken 4
Holy Diver
Home Run Night
Home Run Night ’90
Honoo no Doukyuuji: Dodge Danpei
Honoo no Doukyuuji: Dodge Danpei 2
Honshougi: Naitou Kudan Shougi Hiden
Hoshi no Kirby: Yume no Izumi no Monogatari
Hoshi wo Miru Hito
Hottaman no Chitei Tanken
Houma ga Koku
Hudson Hawk
Hyaku no Sekai no Monogatari
Hydlide Special
Hydlide 3
Hyokkori Hyoutan Shima: Nazo no Kaizokusen
Hyper Olympic
Hyper Sports
I Love Softball
Ice Climber
Idemitsu – Space College – Kikenbutsu no Yasashii Butsuri to Kagaku[7]
Ide Yosuke Meijin no Jissen Mahjong
Ide Yosuke Meijin no Jissen Mahjong II
Idol Hakkenden
Igo Meikan
Igo Shinan
Igo Shinan ’91
Igo Shinan ’92
Igo Shinan ’93
Igo Shinan ’94
Igo: Kyu Roban Taikyoku
Ikari II
Ikari III
IkeIke! Nekketsu Hockey-bu
Ikinari Musician
Image Fight
Inbou no Wakusei: Shankara
Indora no Hikari
Insector X
Ishin no Arashi
Itadaki Street: Watashi no Oten Niyottete
Izaki Shuugorou no Keiba Hisshougaku
J-League Fighting Soccer: The King of Ace Strikers
Datach: J. League Super Top Players
J-League Winning Goal
Jackie Chan
Jajamaru Gekimaden
Jajamaru Ninpou Chou
JaJaMaru no Daibouken
Jarin-Ko Chie
Jesus: Kyofu no Bio Monster
The Jetsons: Cogswell’s Caper!
Jigoku Gokuraku Maru
Jikuu (Toki) no Tabibito
Jikuu Yuten Debias
Joy Mech Fight
JuJu Densetsu
Jumbo Ozaki no Hole in One Professional
Jumpin’ Kid: Jack to Mame no Ki Monogatari
Just Breed
Juuryoku Soukou Metal Storm
Juvei Quest
Kabushiki Doujou
Kage no Densetsu
Kagerou Densetsu
Kaguya Hime Densetsu
Kai no Bouken: The Quest of Ki
Kaijuu Monogatari
Kaiketsu Yancha Maru
Kaiketsu Yancha Maru 2: Karakuri Land
Kaiketsu Yanchamaru 3: Taiketsu! Zouringen
Kakefu Kimi no Jump Tengoku
Kame no Ongaeshi
Kamen no Ninja Akakage
Kamen no Ninja Hamaru
Kamen Rider Club
Kamen Rider SD
Karakuri Kengoden Musashi Lord: Karakuri Jin Shissouru
Karaoke Studio
Karaoke Studio Senyou Cassette Vol. 1
Karaoke Studio Senyou Cassette Vol. 2
Katte ni Shirokuma
Kawa no Nushi Tsuri
Kekkyoku Nankyoku Daibouken
Kero Kero Keroppi no Daibouken
Kero Kero Keroppi no Daibouken 2
Keroppi to Keroriinu no Splash Bomb
Kido Senshi Z-Gundam: Hot Scramble
King Kong 2: Ikari no Megaton Punch
King of Kings
King’s Knight
Kinnikuman: Muscle Tag Match
Kiteretsu Daihyakka
Kitte Rai Da! Gunjin Shougi Nanya Sore?
Knight Rider
Konami Sports in Seoul
Koufuku o Yobu Game: Dora Dora Dora
Koryu Densetsu Villgust Gaiden
Kujaku Ou
Kujaku Ou II
Kunio-Kun no Jidaigeki dayo Zenin Shuugou: Downtown Special
Kunio-Kun no Nekketsu Soccer League
Kurogane Hiroshi no Yosou Daisuki! Kachiuma Densetsu
Kyatto Ninden Teyandee
Kyonshis 2
Kyorochan Land
Kyoryu Sentai Zyuranger
Kyouto Hana no Misshitsu Satsujin Jiken – Yamamura Misa Suspense
Kyouto Ryuu no Tera Satsujin Jiken – Yamamura Misa Suspense
Kyouto Zaiteku Satsujin Jiken Yamamura Misa Suspense
Kyuukyoku Harikiri Koshien
Kyuukyoku Harikiri Stadium
Kyuukyoku Harikiri Stadium ’88
Kyuukyoku Harikiri Stadium Heisei Gannenhan
Kyuukyoku Harikiri Stadium III
Kyuukyoku Tiger
Lagrange Point
Last Armageddon
Law of the West
Little Magic
Little Mermaid
Lode Runner
Lord of King
Lost Word of Jenny
Lot Lot
Lunar Ball
Lupin III Sansei: Pandora No Isan
Mach Rider
Mad City
Magic Candle
Magic Darts
Magic John
Magical Taruruto-Kun: Fantastic World!!
Magical Taruruto-Kun 2: Magical Adventure
Magical Kids Doropi
Magnum Kiki Ippatsu: Empire City 1931
Mahjong Club Nagatacho: Sousaisen
Mahjong Taikai
Mahjong Taisen
Mahou no Princess Minkiimomo Remember Dream
Maison Ikkoku
Majaventure – Mahjong Senki
Majou Densetsu II: The Maze of Galious
Major League
Maniac Mansion
Mappy Kids
Mario Bros.
Mario Open Golf
Marusa no Onna
Mashin Eiyuden Wataru Gaiden
Masuzoe Kaname Icchou Made Famicom
Matendo Douji
Matsumoto Akira no Kabushiki Hisshougaku
Matsumoto Akira no Kabushiki Hisshougaku II
Max Warrior
Meiji Ishin
Meikyuu Kumikyoku
Meikyuu Shima
Meimon! Daisan Yakyuubu
Meimon! Tako Nishiouendan
Meitantei Holmes: Kiri no London Satsujin Jiken
Meitantei Holmes: M-Kara no Chousenjou
Melville no Honoo
Metal Flame: Psybuster
Metal Gear
Metal Max
Metal Slader Glory
Metro Cross
Mezase! Top Pro: Green ni Kakeru Yume
Mickey Mouse
Mickey Mouse III: Yume Fuusen
Might and Magic Book One: The Secret of the Inner Sanctum
Mighty Bomb Jack
Mighty Final Fight
Minelvaton Saga: Ragon no Fukkatsu
Minna no Tabou no Nakayoshi Daisakusen
Miracle Ropitt: 2100-Nen no Daiboken
Mirai Senshi Raios
Mirai Shinwa Jarvas
Mississippi Satsujin Jiken
Mitokoumon II: Sekai Manyuuki
Mitsume ga Tooru
Mizushima Shinji no Daikoushien
Moe-Pro! Saikyou Hen
Moero TwinBee
Moero!! Judo Warriors
Moero!! Junior Basket
Moero!! Pro Soccer
Moero!! Pro Tennis
Moero!! Pro Yakyuu
Moero!! Pro Yakyuu ’88
Moero!! Pro Yakyuu ’90: Kandouhen
Moeru! Oniisan
Mokushi Pachi Pro: Pachi Otto-Kun
Momotaro Densetsu
Momotarou Densetsu Gaiden
Momotaro Dentetsu
Money Game
Money Game II: Kabutochou no Kiseki
Monster Maker: Nanatsu no Hiho
Moon Crystal
Morita Shougi
Motocross Champion
Mottomo Abunai Deka
Mouryou Senki Madara
Murder Club
Musashi no Boken
Musashi no Ken – Tadaima Shugyo Chu
My Life My Love: Boku no Yume: Watashi no Negai
Nagagutsu o Haita Neko: Sekai Isshu 80 Nichi Dai Boken
Nakajima Satoru: F-1 Hero
Nakajima Satoru F-1 Hero 2
Nakayo Shito Issho
Namco Classic
Namco Classic II
Namco Mahjong III: Mahjong Tengoku
Nantettatte!! Baseball
Nantettatte Baseball KO Game Cassette ’91 Kaimakuban
Nantettatte Baseball KO Game Set OB All Star Hen
Napoleon Senki
Navy Blue
Nekketsu Kakutou Densetsu
Nekketsu Kouha Kunio Kun
Nekketsu Koukou Dodge Ball Bu
Nekketsu Koukou Dodgeball-bu Soccer-hen
Nekketsu Street Basket: Ganbare Dunk Heroes
New Ghostbusters 2
New York Nyankies
NHK Gakuen – Space School – Sansu 4 Nen (Ge)[8][9][10]
NHK Gakuen – Space School – Sansu 4 Nen (Jou)
NHK Gakuen – Space School – Sansu 5 Nen (Ge)
NHK Gakuen – Space School – Sansu 5 Nen (Jou)
NHK Gakuen – Space School – Sansu 6 Nen (Ge)
NHK Gakuen – Space School – Sansu 6 Nen (Jou)
Nichibutsu Mahjong III
Niji no Silkroad
Ningen Heiki Dead Fox
Ninja Cop Saizou
Ninja Crusaders
Ninja Hattori-kun
Ninja JaJaMaru-kun
Ninja Jajamaru: Ginga Daisakusen
Ninja Kun
Ninja Kun: Ashura no Shou
Ninja Ra Hoi!
Ninja Ryuukenden
Ninja Ryuukenden II
Ninja Ryuukenden III
Nippon Ichi no Meikantoku
Nishimura Kyoutarou Mystery: Blue Train Satsujin Jiken
Nishimura Kyoutarou Mystery: Super Express Satsujin Jiken
Nobunaga no Yabou: Bushou Fuuunroku
Nobunaga no Yabou: Sengouku Gunyuuden
Nobunaga no Yabou: Zenkokuban
North and South
Nuts & Milk
Obake no Q Tarou: Wan Wan Panic
Ochinnitoshi Puzzle Tonjan!?
Oeka Kids – Anpanman no Hiragana Daisuki
Oeka Kids – Anpanman to Oekaki Shiyou
Oishinbo: Kyukyoku no Menu 3bon Syoubu
Olympus no Tatakai
Onyanko Town
Operation Wolf
Osomatsu-Kun: Back to Zami no Deppa
Otaku no Seiza
Over Horizon
Paaman Part 2
Pachi-Slot Adventure 2
Pachi-Slot Adventure 3: Bitaoshii 7 Kenzan!
Pachinko Daisakusen
Pachinko Daisakusen 2
Pachiokun 2
Pachiokun 3
Pachiokun 4
Pachiokun 5
Palamedes 2
Parareru World
Parasol Henbee
Paris-Dakar Rally Special
Parodius Da! -Shinwa kara Owarai e-
Peepar Time
Penguin-Kun Wars
Perfect Bowling
Photon: The Ultimate Game on Planet Earth
Pinball Quest
Pizza Pop
Plasma Ball
Pocket Zaurus: Ju Ouken no Nazo
Popeye no Eigo Asobi
Portopia Renzoku Satsujin Jiken
Power Blazer
Power Soccer
President no Sentaku
Pro Yakyuu Family Stadium
Pro Yakyuu Family Stadium ’87
Pro Yakyuu Family Stadium ’88
Pro Yakyuu Satsujin Jiken!
Puyo Puyo
Pajama Hero Nemo
Pyokotan no Daimeiro
Quarterback Scramble
Quiz Project Q: Cutie Project & Battle 1000
Racer Mini Yonku: Japan Cup
Radia Senki: Reimeihen
Raf World
Raid on Bungeling Bay
Rainbow Island: The Story of Bubble Bobble 2
Rasaru Ishii no Childs Quest
Recca – Summer Carnival ’92
Red Arremer II
Reigen Doushi
Ripple Island
Road Fighter
Robocco Wars
RoboCop 2
Robot Block
Robot Gyro
Rockman 2: Dr. Wily no Nazo
Rockman 3: Dr. Wily no Saigo!?
Rockman 4: Aratanaru Yabo!!
Rockman 5: Blues no Wana!?
Rockman 6: Shijo Saidai no Tatakai!!
Rokudenashi Blues
Rolling Thunder
Route 16 Turbo
Royal Blood
RPG Jinsei Game
Sensha Senryaku: Sabaku no Kitsune
Saikoushi Sedi
Saint Seiya
Saint Seiya 2
Saiyuuki World
Saiyuuki World 2
Sakigake!! Otokojuku
Salad no Kuni no Tomato Hime
San Goku Shi
San Goku Shi II
San Goku Shi: Chuugen no Hasha
San Goku Shi II: Haou no Tairiku
Sanada Juu Yuushi
Sanma no Meitantei
Sanrio Carnival
Sanrio Carnival 2
Sanrio Cup: Pon Pon Volley
Sansara Naga
Sansu 1-nen: Keisan Game
Sansu 2-nen: Keisan Game
Sansu 3-nen: Keisan Game
Sansu 4-nen: Keisan Game
Sansu 5+6-nen: Keisan Game
Satomi Hakkenden
Satsui no Kaisou
SD Battle Oozumou
SD Gundam Gachapon Senshi 2: Capsule Senki
SD Gundam Gachapon Senshi 3: Eiyuu Senki
SD Gundam Gachapon Senshi 4: New Type Story
SD Gundam Gachapon Senshi 5: Battle of Universal Century
SD Gundam Gaiden: Knight Gundam Monogatari
SD Gundam Gaiden: Knight Gundam Monogatari 2: Hikari no Kishi
SD Gundam Gaiden: Knight Gundam Monogatari 3
Datach: SD Gundam: Gundam Wars
SD Hero Soukessen: Taose! Aku no Gundan
SD Keiji Blader
SD Sengoku Bushou Retsuden: Rekka no Gotoku Tenka o Nusure!
Seikima II Akuma no Gyakushu!
Seirei Densetsu Lickle
Seirei Gari
Senjo no Ookami
Shadow Brain
Shanghai II
Sherlock Holmes: Hakushaku Reijo Yukai Jiken
Shin 4-Jin Uchi Mahjong: Yakuman Tengoku
Shin Moero!! Pro Yakyuu
Shin Satomi Hakken-Den – Hikari to Yami no Tatakai
Shougi Meikan ’92
Shougi Meikan ’93
Shonen Ashibe Nepal Daibouken no Maki
Shuffle Fight
Shufflepuck Café
Side Pocket
Silva Saga
Sky Destroyer
Sky Kid
Snow Bros.
Softball Tengoku
Solomon no Kagi
Solomon no Kagi 2
Soreike! Anapanman Minna de Hiking Game
Space Harrier
Space Hunter
Space Invaders
Space Shadow
Spartan X
Spartan X 2
Spelunker II: Yusha e no Chosen
Splatterhouse: Wanpaku Graffiti
Spy vs. Spy
Spy vs. Spy II: Nankoku Shirei!!
Square no Tom Sawyer
Star Force
Star Luster
Star Soldier
Star Wars
Star Wars
Star Wars: Teikoku no Gyakushuu
STED: Iseki Wakusei no Yabou
Stick Hunter
Sugoro Quest: Dice no Senshi Tachi
Suikoden: Tenmei no Chikai
Sukeban Deka III
Super Arabian
Super Black Onyx
Super Chinese
Super Chinese 2
Super Chinese 3
Super Contra
Super Dynamix Badminton
Super Mario Bros.
Super Mario Bros. 3
Super Mario USA
Super Mogura Tataki!! Pokkun Mogura
Super Momotaro Dentetsu
Super Pinball
Super Pitfall
Super Real Baseball ’88
Super Rugby
Super Sprint
Super Star Force: Jikureki no Himitsu
Super Star Pro Wrestling
Super Xevious: GAMP no Nazo
SWAT: Special Weapons and Tactics
Sweet Home
Sword Master
Tag Team Pro Wrestling
Taito Basketball
Taito Chase H.Q.
Taito Grand Prix: Eikou heno License
Taiyou no Shinden Asteka II
Taiyou no Yuusha Firebird
Takahashi Meijin no Boken Jima
Takahashi Meijin no Boken Jima II
Takahashi Meijin no Boken Jima III
Master Takahashi’s Adventure Island IV
Takahashi Meijin no Bug-tte Honey
Takeda Shingen
Takeda Shingen II
Takeshi no Chosenjo
Takeshi no Sengoku Fuunji
Tamura Teruaki no Mahjong Seminar
Tanigawa Koji no Shougi Shinan II
Tanigawa Koji no Shougi Shinan III
Tantei Jinguji Saburo: Yokohamakou Renzoku Satsujin Jiken
Tantei Jinguji Saburo: Toki no Sugiyuku Mama Ni
Tashiro Masashi no Princess ga Ippai
Tatakae! Cho Robot Seimeitai Transformers: Convoy no Nazo
Tatakai no Banka
Tatake!! Ramen-Man
Tecmo Bowl
Tecmo Super Bowl
Tecmo World Cup Soccer r
(for TMNT 1, see Gekikame Ninja Den)
Teenage Mutant Ninja Turtles: Super Kame Ninja (= TMNT 2)
Teenage Mutant Ninja Turtles 2: The Manhattan Project (= TMNT 3)
Tenchi o Kurau
Tenchi o Kurau II
Tenkaichi Bushi Keru Naguuru
Terao no Dosukoi Oozumou
Terminator 2
Terra Cresta
Tetra Star
Tetris 2 + Bombliss
Tetris Flash
Tetsuwan Atom
Time Zone
Times of Lore
Tiny Toon Adventures
Tiny Toon Adventures 2: Montana Land e Yokoso
TM Network: Live in Power Bowl
Tobidase Daisakusen 2: JJ
Tokkyu Shirei Solbrain
Tokoro-san no Mamoru mo Semeru mo
Tokyo Pachi-Slot Adventure
Tom & Jerry
Tom Sawyer no Bouken
Top Gun
Top Gun: Dual Fighters
Top Rider
Top Striker
Totsuzen! Macho Man
Touch Down Fever: American Football
Touhou Kenbunku
Tokaido Gojusan-tsugi
Toukon Club
The Tower of Druaga
The Triathlon
Tsuppari Oozumou
Tsuppari Wars
Tsurikichi Sanpei
Tsuru Pikahage Maru: Mezase! Tsuruseko no Akashi
Twin Eagle: Revenge Joe’s Brother
TwinBee 3
Uchuu Keibitai SDF
Uchusen: Cosmo Carrier
Ultima: Seisha he no Michi
Ultraman Club Kaijuu Dai Kessen!!
Datach: Ultraman Club: Supokon Fight!
Ultraman Club 2: Kaettekita Ultraman Club
Ultraman Club 3
The Untouchables
Urban Champion
Urusei Yatsura: Lum’s Wedding Bell
US Championship V’Ball
USA Ice Hockey in FC
Ushio to Tora: Shin’en no Daiyo
Utsurun Desu.: Kawauso Hawaii e Iku!!!
Valkyrie no Boken: Toki no Kagi Densetsu
Valis: The Fantasm Soldier
Vegas Connection: Casino Kara Ai wo Komete
Venus Senki
Viva Las Vegas
Volguard II
Wagyan Land
Wagyan Land 2
Wagyan Land 3
Wai Wai World
Wai Wai World 2: SOS!! Parsley Jo
Wanpaku Duck Yume Bouken
Wanpaku Kokkun no Gourmet World
Wario no Mori
Western Kids
White Lion Densetsu
Wild Gunman
Wily & Right no RockBoard: That’s Paradise
Wing of Madoola
Winners Cup
Wizardry: Proving Grounds of the Mad Overlord
Wizardry II: Legacy of Llylgamyn – The Third Scenario
Wizardry III: Knight of Diamonds – The Second Scenario
Woody Poko
World Boxing
World Grand-Prix – Pole To Finish
World Super Tennis
Wrecking Crew
WWF WrestleMania Challenge
Yie Ar Kung Fu
Yoshi no Cookie
Yoshi no Tamago
Yokai Dochuki
Youkai Club
Yousei Monogatari RodLand
Ys III: Wanderers from Ys
Yume Penguin Monogatari
Datach: YuYu Hakusho: Bakuto Ankoku Bujutsu Kai
Zelda no Densetsu 1
Zenbei!! Pro Basketball

Famicom Disk System (FDS) Games

19 – Neunzehn
Adian no Tsue
Ai Senshi Nicol
Akumajōu Dracula
Akū Senki Raijin
All Night Nippon Super Mario Bros.
All One
Apple Town Story
The Miracle of Almana
Aspic – Majaō no Noroi
Bakutōshi Patton-Kun
Big Challenge! Dogfight Spirit
Big Challenge! Go! Go! Bowling
Big Challenge! Gun Fighter
Big Challenge! Judo Senshuken
Bio Miracle-I’m Upa
Bio Miracle Bokutte Upa
Bubble Bobble
Chitei Tairiku Ordola
Cursed Treasure of Cleopatra
Clu Clu Land: Welcome to New Clu Clu Land
Cocona World
Dandy: Zeuon No Fukkatsu
Dead Zone
Deep Dungeon
Dig Dug
Dig Dug II
Dirty Pair: Project Eden
Donkey Kong
Donkey Kong Jr.
Dr. Chaos
Dracula II: Noroi no Fūin
Druid: Kyōfu no Tobira
Eggerland – Departure to Creation
Esper Dream
Exciting Baseball
Exciting Basketball
Exciting Billiard
Exciting Soccer: Konami Cup
Famicom Grand Prix: F-1 Race
Famicom Grand Prix II: 3D Hot Rally
Famicom Detective Club: The Missing Heir (first part)
Famicom Detective Club: The Missing Heir (second part)
Famicom Detective Club Part II: The Girl who Stands Behind (first part)
Famicom Detective Club Part II: The Girl who Stands Behind (second part)
Family Composer
Family Computer Othello
Final Command: The Red Fortress
Fire Bam
Fire Rock
Fūun Shōrin Ken
Fūun Shōrin Ken: Ankoku no Maō
Gall Force: Eternal Story
German Tanteidan: Marine-gumi Jaaman Tanteidan: Matonarikumi Jaaman Tanteidan Marine Kumi: Maruhi Jigoma Sousa File
Ginga Denshō: Galaxy Odyssey
Gokuraku Yūgi: Game Tengoku
Golf Japan Course
Golf U.S. Course
The Goonies
Green Beret
Halley Wars
Hao’s Mysterious Journey
Hikari Genji: Roller Panic
Hikari Shinwa: Palthena no Kagami
Hong Kong
I am a Teacher: Super Mario no Sweater
I am a Teacher: Teami no Kiso
Ice Climber
Ice Hockey
Igo: Kyū Roban Taikyoku
Ishido: The Way of Stones
Janken Disk Jō
Jikai Shounen Mettomag
The Return of Mario Bros.
Kamen Rider Black: Taiketsu Shadow Moon
Karate Champ
Kattobi! Dōji
Kick and Run
Kick Challenger: Air Foot
Kidō Keisatsu Patlabor
Kiki Kaikai: Dotō Hen
Kieta Princess
Kinnikuman: Kinniku-Sei Ōi Sōdatsusen
Knight Lore
Knight Move
Konami Ice Hockey
Konami Tennis
A Kitten’s Story: The Adventures of Chatran
The Legend of Zelda
The Legend of Zelda 2: The Adventure of Link
Magma Project: Hacker
Mahjong Kazoku
Märchen Veil
Matō no Hōkai: The Hero of Babel
Meikyū Jiin Dababa
Michael English Daibōken
Moero Twinbee: Cinnamon Hakase wo Sukue!
Monitor Puzzle, The: Kineco – Kinetic Connection
Monitor Puzzle, The: Kineco Vol. II – Kinetic Connection
Monty no Doki Doki Daisassō: Monty on the Run
Moonball Magic
Mr. Gold: Tōyama no Kinsan in Space
Nakayama Miho no Tokimeki High School
Namida no Sōkoban Special
Nanking no Adventure
Nazo no Kabe: Block Kuzushi
Nazo no Murasame Jō
Nazoler Land
Nazoler Land Dai 2 Gō
Nazoler Land Dai 3 Gō
Nazoler Land Special
Omoikkiri Tanteidan Haado Gumi: Matenrō no Chōsenjō
Pachinko Grand Prix
Panic Space
Pro Golfer Saru: Kage no Tournament
Professional Mahjong Goku
Pulsar no Hikari: Space Wars Simulation
Pro Wrestling: Famicom Wrestling Association
Putt Putt Golf
Puyo Puyo
Puzzle Boys
Radical Bomber!! Jirai Kun
Reflect World
Relics: Ankoku Yōsai
Risa no Yōsei Densetsu: Risa Tachibana
Roger Rabbit
Samurai Sword
Santa Claus no Takarabako
SD Gundam World: Gachapon Senshi – Scramble Wars
SD Gundam World: Gachapon Senshi – Scramble Wars Map Collection
Section Z
Seiken: Psycho Calibur
Shin Onigashima (Disk 1)
Shin Onigashima (Disk 2)
Smash Ping Pong
Solomon no Kagi
Suishō no Dragon
Super Boy Allan
Super Lode Runner
Super Lode Runner II
Super Mario Bros.
Super Mario Bros. 2 (different from US version)
Sword of Kalin
Tama & Friends: Great 3rd Street Adventure
Tanigawa Kōji no Shōgi Shinan II
Tanigawa Kōji no Shōgi Shinan II – Shinban
Tantei Jingūji Saburo: Kiken na Ninin (first part)
Tantei Jingūji Saburo: Kiken na Ninin (second part)
Tantei Jingūji Saburo: Shinjuku Chūō Kōen Satsujin Jiken
Time Twist: Rekishi no Katasumi de… (first part)
Time Twist: Rekishi no Katasumi de… (second part)
Titanic Mystery (Ao no Senritsu)
Tobidase Daisakusen
Topple Zip
Transformers: The Headmasters
Ultraman: Kaijū Teikoku no Gyakushū
Ultraman 2: Shutsugeki Katoku Tai
Ultraman Club: Chikyū Dakkan Sakusen
Vs. Excitebike
Wardner no Mori
Winter Games
Wrecking Crew
Yōkai Yashiki
Yume Kōjō: Doki Doki Panic
Yū Maze
Yūshi no Monshō
Yūyūki (first part)
Yūyūki (second part)

There are probably mistakes on this page. Sorry.

Things I Forgot

There are so many topics to discuss. It would be very difficult to cover 100%. Let’s briefly mention a few of the things I forgot to mention.

Multiplication and Division

SNES has hardware to perform multiplication and division. Actually, it has 2 ways to do multiplication. You can look at my EasySNES code to find examples of these (link below, search for multiply: and divide:). They are a little slow, so you can’t expect to do this 100x a frame. You have to wait a several cycles before you get a result for the regular multipy and divide functions (see the NOP opcodes, which do nothing but wait).

If you aren’t using Mode 7, there is a second multiply function (signed) which is much faster. I need to rewrite that function (TODO). But the regular Multiply function works fine.


Any other higher level math will have to be done with LUTs (look up tables), precalculated byte arrays.

Development Cart

I have a Super Everdrive, made by Krikzz, from Ukraine. And, ooh, they even have one that supports the SuperFX chip. I wish I had that one.


Well, this one is over $200 US, but the basic model is less than $100, and it is well worth it. It works great. It uses a MicroSD card to hold the game ROMs.

Mode 7

This is the big enchilada, but I haven’t quite figured out this mode. Especially, setting up a tool chain for editing. Mode 7 can stretch and zoom and rotate. Many of the coolest SNES games use this in some way. It’s just currently above my skill level.

I do plan to work on this in the future. I wrote a tool called M8TE which can import an image to Mode 7 and create mode 7 maps.

IRQ Timers

This is for timing mid screen events. You should try to use HDMA instead. If all 8 HDMA channels are being used, you could do a 9th thing with IRQ timers.

You need to enable IRQ timers (probably just the V timer). and CLI to enable IRQs on the CPU. And you need to add code to the IRQ handler. Once set, the counter will trigger an IRQ signal once the PPU reaches a specific scanline. H counter would fire an IRQ signal every scanline, and you probably don’t want that.

Enhancement Chips

Another thing that is a bit over my head. The SA-1 chip is just a much faster 65816 chip, and that might be the easiest to use.

Some chip names = DSP1, DSP1A, DSP1B, DSP2, DSP3, DSP4, GSU1 (aka MarioChip1 aka SuperFX), GSU2, GSU2-SP1, OBC1, SA-1, S-DD1, S-RTC, SPC7110, ST010, ST011, ST018, CX4.

Some of the functions they do…

decompression code

trigonometry functions

image zooming and rotation

converting bitmaps to tiles

drawing vector graphics, triangles

real time clock

enemy AI functions (probably wouldn’t be useful to you)


The cool chip is the SuperFX chip (GSU). That’s what StarFox used. It would be nice if I could figure it out, and explain it. But, I can not.

Other Modes

Hi resolution. Modes 5 and 6 are double horizontal resolution. They can also, optionally, do an interlaced mode which doubles vertical resolution. Very few games used hi resolution.

Offset per tile Modes 2 and 4. I need to investigate these a bit more. I don’t want to put incorrect information here.


For LoROM, SRAM is mapped to banks $70–$7D in the $0000-$7FFF addresses. And also in the $FE-$FF banks in the $0000-$7FFF addresses. (7e and 7f banks are the WRAM, so that couldn’t be used for SRAM). That gives a total possible 512kB SRAM (battery backed save RAM).

HiROM, as usual, is completely different.


You will also need to indicate in the header that the ROM is using SRAM. I think that’s mapped to $FFD7, but it’s this line in the header.asm file

.byte $00 ; backup RAM size

The value is (2^# in kB). 3 is 8kB, 4 is 16kB, 5 is 32kB, 6 is 64kB, 7 is 128 kB, 8 is 256kB, and 9 is 512kB. 0 means 0kB.

Oh, and the previous line, mapped to $FFD6, should have the d1 bit (0000 0010) set. To indicate a battery for the SRAM.

Once you have correctly set this, the emulator should automatically be creating SRAM save files, that persist after power off. You can freely read and write to this anytime, and you can save your game by keeping the progress stored in the SRAM.

SNES main page

Color Math

SNES programming tutorial. Example 12.


What is color math? If you’ve ever worked with Photoshop, it would be like blending 2 different layers with the settings on Add or Subtract. In this case the layers are the MAIN screen and the SUB screen. Everything we have done so far deals with the MAIN screen. So let me try to explain the SUB screen.

All that stuff that the SNES does to produce a picture, putting layers on top of each other, tile priorities, sprite priorities, etc… it does all that TWICE. If you set the settings for the MAIN screen exactly the same as the settings for the SUB screen, it would produce the exact same picture TWICE… with 1 difference.  The main screen uses color index zero as the backdrop color (any pixel that is transparent), and the sub screen uses the “fixed color” as the backdrop color (register $2132).

You would never see the SUB screen, unless you turned on the color math registers, which would then blend the 2 pictures together, using either addition or subtraction. And then there is an optional halving step after that. Each pixel on the screen, the R values are added or subtracted, and the G value, then the B value. That value is clamped to the max and min without overflow. (each RBG value is 0-31)

Let’s say we have it set to ADD. And the main screen pixel is gray 15,15,15, and the sub screen pixel is dark red 10,0,0. The final pixel would be 25,15,15.

If we added the HALF option, each value would shift right once (rounding down), giving a final pixel of 12,7,7.

If we set the color math to SUBTRACT (no halving), the final pixel would be 5,15,15. The RGB values of the sub screen are subtracted from the RBG values on the main screen.

If we added the HALF option, each value would shift right once (rounding down), giving a final pixel of 2,7,7.

Note, any pixel in the sub screen that is transparent will not be halved.

The main use for Color Math is for transparency effects. You will want Adding and Halving. That would equally blend the main and sub screen.

The least useful setting is the subtract and halving. That would just produce a very dark picture, and almost no games used this.


There is a completely different kind of color math operation, that uses ONLY the fixed color. That color is applied to the entire MAIN screen, and if halving is set, it will work for the whole screen. If you set the fixed color register to green, and had the color math set to ADD, it would add a green tint to the screen.

The fixed color register $2132 is weird. The wiki example suggest writing each color separately to it (3 writes for R,B, and G). However, you could set them all to a specific value with 1 write. Such as LDA #$E0, STA $2132 would set all fixed colors to zero.

Before we dive into the code, here’s a video. You can probably skip most of this video, which goes into too many details about how the 2 different screens are generated.

Example ROM

I put BG1 on the main screen (gray rocks) and BG2 on the sub screen (color bars).

No effect. Color Math disabled.


Just the Sub screen. (seen by setting the “clipping always to black” bits in the color math logic, and adding the sub screen).


Note, the top left is black (non-zero index). The bottom left is zero index (transparent).  The sub screen will show the “fixed color” (register 2132) where there is transparent. Right now the fixed color is black. Color halving will not work for a transparent pixel on the sub screen. If you notice, the bottom left square will not change at all for these examples, even when halving is indicated.

Color Math Adding.


Color Math Adding and Halving.


Color Math Subtracting.


Color Math Subtracting and Halving.


Fixed color only (red at 50%), Color Math Adding.


Here’s a YouTube video of the Example code.

Example Code

cc = main screen black if... *
--mm---- = prevent color math if... *
------0- = fixed color
------1- = sub screen
d is for an unrelated thing

* 00 => Never
  01 => Outside Color Window only
  10 => Inside Color Window only
  11 => Always

0------- add
1------- subtract
-0------ normal
-1------ result is halved
b = backdrop, o = sprites, 4321 = layers enabled for color math

$2132 (fixed color)
b/g/r = Which color plane(s) to set the intensity for. 
ccccc = Color intensity.

So let’s go over each examples.

1- no effect, turn off color math

lda #$30 ; = off
sta CGWSEL ; $2130
;and make sure fixed color is black
lda #$e0 ; RGB, value = 0
sta COLDATA ; $2132

2- adding

lda #$02 ; color math with subscreen
sta CGWSEL ; $2130

;adding, not half, affect all layers 
lda #$3f
sta CGADSUB ; $2131

3- adding and half, same as last one, just add one bit to the 2131 write

;adding, half, affect all layers 
lda #$7f
sta CGADSUB ; $2131

4- subtracting

lda #$02 ; color math with subscreen
sta CGWSEL ; $2130

;subtracting, not half, affect all layers 
lda #$bf
sta CGADSUB ; $2131

5- subtracting and half. Same as last one, but add one bit to the 2131 write

;subtract, half, affect all layers	
lda #$ff
sta CGADSUB ; $2131

6- fixed color only

;turn on color math, fixed color mode
lda #$00
sta CGWSEL ; $2130

;adding, not half, affect all layers 
lda #$3f
sta CGADSUB ; $2131

;set the fixed color to red 50%
lda #$2f ;red at 50%
sta COLDATA ; $2132

We could have also set half mode.

7- see just the sub screen. We did this by setting the “always clip main screen to black” bits in 2130, and then adding the sub screen to the now completely black main screen.

lda #$c2 ;= clip main always to black
sta CGWSEL ; $2130

;adding, not half, affect all layers 
lda #$3f
sta CGADSUB ; $2131

Other examples

Color math only affects some sprites. Only sprites that use palettes 4-7 are affected by color math. That is why Mario (and the little ghosts) are solid.

Super Mario World (USA)_006

Windowing can affect where the color math applies. With HDMA adjusting the window, you can make some cool effects.

Contra III - The Alien Wars (USA)_000


Super Mario World (USA)_008

Tint the whole screen (adding a fixed color)… actually, upon further investigation, this is subtracting, which makes the screen slightly darker than the original. Also, the COLOR MATH is not in fixed color mode, it’s in subscreen mode, but NOTHING is enabled on the subscreen, so the subscreen is filled with the backdrop color (which for the sub screen is the fixed color). I guess that works too.

Legend of Zelda, The - A Link to the Past (USA)_000

Smooth Transparencies (add and halving). This is the most common transparency effect on the SNES.

Legend of Zelda, The - A Link to the Past (USA)_001

Sparkster, the water.

Sparkster (USA)_000

And creating shadows (subtracting) Mortal Kombat II. It’s hard to tell, but their shadows are created by color math subtraction. You could also give the appearance of clouds moving overhead by subtracting a cloud shape and having it scroll.

Mortal Kombat II (USA)_000




SNES main page

HDMA Examples

SNES programming tutorial. Example 11.


HDMA is a way to write to PPU registers while the screen is drawing. You can change values at specific scanlines, to create unique effects.

The H is for H-Blank. Remember before, when we talked about V-blank (vertical blank), where the PPU isn’t doing anything for a short while after drawing each screen? Well, it also pauses a VERY SHORT time after drawing each horizontal line. Just long enough for the 8 HDMA channels to quickly change a register or send data, before the screen goes to write the next line.

They work in order, 1,2,3,4,5,6,7,8. They can all write 1 thing (1,2 or 4 bytes) per line. Or you can set them to wait a specific number of lines before changing a value.

HDMA uses the same registers as the DMA registers, and you shouldn’t use both at the same time. You should write zero to HDMA enable ($420c) before performing a DMA. Because the oldest revision of the SNES has a bug where it can crash if they both happen at the same time. Or, just make sure they aren’t used at the same time.

Here’s an interesting video on DMA and HDMA.


Here’s some things you can do with HDMA.

Changing the BG color with HDMA, to create a color gradient.


Changing the Window (there are 2 windows) with HDMA, to block off portions of the screen. The windows have left and right registers, which need to be written every scanline to create these shapes.

Super Mario World (USA)_000

Super Mario World (USA)_003

Mode 7 parameters. (lots of registers to change hundreds of times a frame).



How HDMA works


(for this link, scroll down to 43×0)

When you look at the HDMA registers, it looks like you need to put MORE values, but you don’t need to write to them all. Let’s go over each register.

For channel 0.

4300 – yes
4301 – yes
4302-4 – yes
4305-6 – no
4307 – yes, only if using Indirect Mode.
4308-a – no

4300 - Control Register. da---ttt

D=direction, probably want 0, from CPU to PPU.

A=HDMA mode. 0 for direct, 1 for indirect. More on this later.

TTT = transfer mode, which will vary by which register we use.

000 => 1 register write once (1 byte: p)
001 => 2 registers write once (2 bytes: p, p+1)
010 => 1 register write twice (2 bytes: p, p)
011 => 2 registers write twice each (4 bytes: p, p, p+1, p+1)
100 => 4 registers write once (4 bytes: p, p+1, p+2, p+3)
101 => 2 registers write twice alternate (4 bytes: p, p+1, p, p+1)
110 => 1 register write twice (2 bytes: p, p)
111 => 2 registers write twice each (4 bytes: p, p, p+1, p+1)

4301 – the PPU destination register. 21xx. So if you write $22 here, the HDMA will write to the $2122, the CGRAM Data Register.

4302-4 – the address of the HDMA table. 2=low, 3=middle, 4=upper/bank #.

4307 – if using Indirect HDMA, this is the bank # of the Indirect Addresses.

Anything marked “no”, don’t touch them. They are used by the HDMA hardware.

Then you write the channel (bitfield, each bit represents a channel, 1 for ch0, 2 for ch1, 4 for ch2, 8 for ch3, etc) to $420c, the HDMA enable register. Presumably, you would do this step during v-blank or during forced blank. I think it will misbehave for 1 frame if you turn HDMA on mid-frame.


OK, so we are pointing the HDMA registers to a table (byte array). For a direct mode, the table would be a scanline count, then (depending on the TTT mode) 1,2, or 4 bytes to be written. Then another scanline count, then more bytes. Scanline count, bytes. Scanline count, bytes. Etc, until it sees a zero in the scanline count slot. From my own examples…

.byte 32, $0f
.byte 32, $1f
.byte 32, $2f
.byte 32, $4f
.byte 32, $6f
.byte 32, $9f
.byte 32, $ff
.byte 0 ;end

That reads 32 lines, value $0f. 32 lines, value $1f. 32 lines… etc down to the terminating 0. One interesting thing is that the $0f is written immediately at the very top of the screen. THEN it waits 32 lines.

Here’s another example, when the transfer mode is “1 register write twice”.

.byte 10, 0, 0
.byte 10, 1, 0
.byte 10, 2, 0
.byte 10, 3, 0
.byte 10, 4, 0
.byte 10, 5, 0
.byte 10, 6, 0
.byte 10, 7, 0
.byte 10, 8, 0
.byte 10, 9, 0
.byte 0 ;end

10 is the scanline count. Then 2 bytes to write. Then 10 scanline count. Then 2 bytes. Etc.

Indirect Mode

43×0 register, we can set it to Indirect. Only with indirect do you need to write to 43×7, the bank of the indirect address. The table will always be sets of 3s. First the scanline count, then an indirect address (ie. pointer) to where our data is. I wrote the HDMA table like this…

.byte 8
.addr $1000
.byte 8
.addr $1002
.byte 8
.addr $1004
.byte 8
.addr $1006
.byte 8
.addr $1008
.byte 0 ;end

The .addr directive outputs a 16 bit value, low byte then high byte. I think you could have also used the .word directive. So, 8 is the scanline count, then an indirect address. Our bank byte is $7e, so the first one points to WRAM $7e1000. The second one points to $7e1002. Etc.

One of the advantages of the indirect system is that you can have a repeated pattern that changes.

I had copied the Indirect Table to $7e1000. It looks like this.

.byte 0, 0
.byte 3, 0
.byte 6, 0
.byte 7, 0
.byte 8, 0
.byte 7, 0
.byte 6, 0
.byte 3, 0
.byte 0, 0
.byte $fd, 0
.byte $fa, 0
.byte $f9, 0
.byte $f8, 0
.byte $f9, 0
.byte $fa, 0
.byte $fd, 0
.byte 0,0

All of these are values to be written with HDMA to a PPU register. In this case, a horizontal scroll register, which is write twice (low then high bytes).

This is example 3. I am also shuffling these values every 4 frames, which causes the movement of the the sine wave.

Example Code

No effect. HDMA is turned off by writing zero to $420c.




Example 1. Changing the BG color.

I’m actually setting up 2 separate HDMA transfers. First to set the CG address to zero. Second to write 2 bytes to change the #0 color. You have to rewrite the address each time, because it auto-increments when writing a color.

stz $4300 ;1 register, write once
lda #$21 ; CGRAM Address
sta $4301 ;destination
ldx #.loword(H_TABLE1)
stx $4302 ;address
lda #^H_TABLE1
sta $4304 ;address

lda #2
sta $4310 ;1 register, write twice
lda #$22 ; CGRAM DATA
sta $4311 ;destination
ldx #.loword(H_TABLE2)
stx $4312 ;address
lda #^H_TABLE2
sta $4314 ;address

lda #3 ;channels 1 and 2
sta HDMAEN ;$420c

And we have 2 HDMA tables (see the example code). Each time we are waiting 10 scanlines between changes. Each time, adding a little more red.




Example 2. Changing window 1 left and right positions.

A window punches a hole in one or more layer. There are 2 windows, but we only need 1 for this example. The only parameters you can set are left and right (and inverse, and combinations with the other window). But with HDMA, you can adjust the window parameters as the screen draws, and draw a shape. Circle shapes are very popular.

If the left position is > than the right position, the window will not appear. That is what we are doing for the top and the bottom of the screen. You also have to tell it which layers are affected with the $212e (window for main screen) and with the $2123-5 registers.

I’m using 2 HDMA channels, and writing 1 byte to 1 register. To 2126 and 2127.

lda #1 ;windows active on layer 1 on main screen
sta TMW ;$212e
lda #2 ;window 1 active on layer 1
sta W12SEL ;$2123

stz $4300 ;1 register, write once
lda #$26 ;2126 WH0
sta $4301 ;destination
ldx #.loword(H_TABLE3)
stx $4302 ;address
lda #^H_TABLE3
sta $4304 ;address

stz $4310 ;1 register, write once
lda #$27 ;2127 WH1
sta $4311 ;destination
ldx #.loword(H_TABLE4)
stx $4312 ;address
lda #^H_TABLE4
sta $4314 ;address

lda #3 ;channels 1 and 2
sta HDMAEN ;$420c

(This could have been done with 1 channel with a 2 register transfer mode).

Note… If the scanline count is >128 (not including 128), it signals a series of single scanline writes. You can omit the scanline count for a number of lines (ie. subtract 128 from the scanline count number).

.byte 60, $ff ;first we wait 60 scanlines
.byte $c0 ;192-128 = 64 lines of single entries
.byte $7f ;1st write value
.byte $7e ;2nd write value
.byte $7d ;3rd write value
.byte $7c ;4th write value
...etc...64 lines.
.byte 0 ;end

It waits 1 scanline between each write.

Each line, I am moving the left position and right position further apart, and then closer together, which forms a diamond shape.




Example 3. Changing BG1 horizontal scrolling position.

This was already discussed above, in the Indirect Mode section. We are using a sine wave pattern to create a wave in the picture, writing twice to 1 register, the horizontal scroll of BG1.

I wanted to include at least 1 example of indirect mode. I copied the value table to the RAM, so I was able to change the values to make the pattern move. See the Shuffle_f3 function in the HMDA3.asm file. The table of Indirect Addresses points to the RAM where our actual values are stored.

This example would have been even nicer if we wrote new values every scanline. Currently, we are only changing values every 8 scanlines (to make the table simpler / smaller). Maybe even every 2 scanlines would have been enough.

lda #$42 ;indirect mode = the 0100 0000 bit ($40)
sta $4300 ;1 register, write twice
lda #$0d ;BG1HOFS horizontal scroll bg1
sta $4301 ;destination
ldx #.loword(H_TABLE5)
stx $4302 ;address
lda #^H_TABLE5
sta $4304 ;address
lda #$7e
sta $4307 ;indirect address bank

lda #1 ;channel 1
sta HDMAEN ;$420c




Example 4. Changing the Mosaic filter.

This is the simplest example. A single write to a single register. I haven’t discussed the Mosaic filter before, $2106 . The upper nibble is the mosaic amount (0 = normal, 1 = 2×2, etc up to $f = 16×16), and the lower nibble says which layers are affected. Sprites are never affected.

stz $4300 ;1 register, write once
lda #$06 ;mosaic
sta $4301 ;destination
ldx #.loword(H_TABLE6)
stx $4302 ;address
lda #^H_TABLE6
sta $4304 ;address

lda #1 ;channel 1
sta HDMAEN ;$420c

It waits 32 lines before increasing the mosaic value. There are bigger squares at the bottom. You probably wouldn’t use this exact HDMA effect in a game, but it is just an example of what is possible. You can change so many settings, even the BG mode $2105, which layers are active, change the location of a tilemap or tileset. I think you can even write new data to the VRAM (a little bit at a time).




Example 5. Windows with Color Math.

(the next example page will talk more about Color Math registers)

Some of the coolest effects were done with this combination. We are adding a fixed color to tint the picture, and using the windows to shape the color box. If we made the HDMA table for the window more elaborate, it could be a circle, or any simple shape. We could change the table and make it grow or squish. The windows work the same as before, but we just needed to change the settings so that the window affects color math and nothing else.

lda #$20 ;Window 1 active for color, not inverted
sta $2125 ;WOBJSEL - window mask for obj and color
lda #$10 ;prevent outside color window, clip never, 
;add fixed color (not subscreen)
sta $2130 ;CGWSEL - color addition select
lda #$3f ;color math on all things, add, not half
sta $2131 ;CGADSUB - color math designation

We are setting the color math to use only the fixed color, and not the subscreen. So, we need to set the color of the fixed color register $2132.

lda #$8f ;blue at 50%
sta $2132 ;COLDATA set the fixed color

This register (fixed color) is a bit complicated, I will explain it more on the next page, but the upper bits are the color selectors, and the lower 5 bits are for value. 8 is blue and $0f is for 15 (out of 31), or just above 50%. With color math addition (with the fixed color) turned on, it would color the entire screen blue. But, our HMDA window blocks out the effect for the top, sides, and bottom of the screen, leaving a blue box in the size/shape of the painting.




Here’s a YouTube video of these examples (video is old, doesn’t include the 5th effect).


IMPORTANT NOTE – the top most scanline is never drawn. It’s blank. At the end of that 0th scanline, it sends the first value of the HDMA tables, and then it sets the scanline count. The HDMA table looks like the scanline count is before the value to send, but it does it the opposite… it sends the value and then it waits. That means that the first value effects the very top of the visible screen.

The HDMA table resets at the end of v-blank. Automatically. Even if it didn’t complete the table because it was longer than the number of scanlines on screen, it jumps back to the 0th item on the HDMA table, and continues the next frame from the top of the table.

Also, a count of zero terminates the HMDA for the rest of the frame, but it still resets again, at the top of the next frame, and keeps going. If there is a value listed after the zero, it isn’t sent.







SNES main page

SNES Music

This is a lesson on using SNESGSS to make SNES music.

Before you read this… I have made improvements to SNESGSS, the newest version has a Q at the end, and it has a different music.asm file. See this link for more info.

SNES Music 2


NOTE – If SNESGSS editor stops playing the music correctly (silences some or all the notes), the issue is that there is too many things loaded to fit in the ARAM. This could happen unexpectedly, because adding to the song editor might overflow the available RAM, without warning. Click over to INFO and it will probably say there is no memory left. You will have to shorten the song or remove unused samples.


SNES programming tutorial. Example 10.


Here’s an interesting video on the SPC700 and SNES audio.

Today, we are going to talk about SNES music. The APU (Sony SPC700) is a different chip entirely, and has its own 64k of RAM. At the beginning of our program, we need to load the APU with our SPC file. It is an audio program that runs automatically.

The APU is connected to an 8 channel DSP (digital sound processor). The song will direct the DSP to play different sound samples at different rates to make tones. If you are familiar with MIDI, it is similar. The samples can be looped or not. The samples are compressed into a native compression called BRR (bit rate reduction).

BRR samples are very large, and you will probably be only able to fit 10-15 samples. Each will have to be edited (perhaps with Audacity) to less than a second each, and at a reduced sample rate. We are going to work with SNESGSS (written by Shiru).

I originally found it here (you might want to look here to get the sample intruments), but don’t use this .exe because it has a bug.


I patched out the bug, and also added echo functions. You can get that version here…


and also grab the music.asm file. You will need it.


SNESGSS prefers to have 16-bit MONO WAV samples at sample rate 32000 or 16000. I have tried 8000, but usually the sound quality is too bad at 8000. 8000 might be ok for a bass sample.

There seems to be a bug in Audacity, when you resample to another rate (Tracks/Resample), it doesn’t actually change the project sample rate, nor will it save the project at that sample rate. What you need to do is Open the WAV file in Audacity, Select All and COPY it. Then Open a NEW PROJECT, and change the project’s sample rate (at the bottom left) to 16000. Then PASTE it. Now it will save at the correct sample rate.

Recording at the desired rate has no problems. 16000 seems to be a nice sweet spot on audio quality and file size.

SNESGSS also suggests tuning the samples to B +21 cents. I did not. I left all my samples at C. They are not in tune with the samples provided with SNESGSS, which I did not use. I think those are tuned to B +21. The reason behind the unusual tuning is to make it easier to make looped samples without clicks. BRR format is forced to be blocks of 16 samples, so a multiple of 16 samples (such as 256 samples per wave cycle) at a sample rate of 32000 (or 16000) samples per second works out to B +21.

But, feel free to use whatever tuning is easiest for you.


Hit the WAV button near the middle of the screen to load your samples. Setting the envelopes similar to this sounds good to me (15, 1, 7, 16). If you managed to loop the sample perfectly, you may prefer to leave the last envelope setting (SR) at 0, for a tone that can continue infinitely.

You can press the 2x or 4x buttons if you run out of room for files, to downsample by half.

To loop, click the “On” button and type in the loop start (FROM) and loop end (TO) numbers. Note – BRR sample length needs to be a multiple of 16, and the loop start and end points need to be a multiple of 16. SNESGSS doesn’t tell you that… you will probably have to use a calculator to calculate a multiple of 16 and type exact numbers in.

I wouldn’t mess with the volume or EQ settings. That is something you should have done in Audacity while editing. Just keep in mind that the SNES tends to weaken the upper range and make bright sounds feel dull. You might have to do a treble boost for the lead instruments.

This tracker will convert our samples to BRR, but not until your final export. Unfortunately, you can’t import BRR samples to it from other sources. And you can’t export BRR samples, although you could export an SPC and use spc_decoder.exe from BRRtools to extract the BRR samples from the SPC.


Here you can check the size of all the files. Obliviously, you can’t have a bigger SPC file than 64k, the size of the APU RAM.

I should note, that we only load 1 song in the APU RAM at a time. Staring a new song will load a new song (over the previous song), so that only one song is loaded at any time. That should give you a little flexibility on overall size.


Here is the main editor. You type Z-M keys for lower octave, Q-P keys for upper octave. You can change the octave by pressing the octave button. So, this is a standard tracker, it goes downward as the song plays.

You can toggle channels on and off by clicking on the word “channel 1”, etc. You can divide things into sections. Press the spacebar to mark the end of a section. Then you can repeat the previous section with an R00 command.

The order of things is Note, Instrument, Volume 0-99, and Special effects. The SP column is for song speed (smaller is faster). You can scroll up and down with PgUp and PgDn keys, and also Home and End goes to the next section.

CTRL+End marks the end of the song, and CTRL+Home marks the loop back point.

You can import Famitracker and MIDI files (notes only), but I haven’t tried.


On this page, you can mark a song as a “Sound effect”.

Once the songs are done, you File/Export. And that will produce several files.

spc700.bin is our main SPC file. It holds the program and the samples and the sound effects data.

music_1.bin (one file per song) is the song data.

sounds.asm and sounds.h we don’t need. Don’t include them. This was for a different assembler / C compiler. You might want to look at it to find the value of each sound effect.

.define SFX_DING 0

…tells us that the DING sound effect is called with the value zero.



I changed the asm code in mid 2021, make sure you have the latest music.asm so it can handle SPC files larger than 32k. Here’s how we can include the file accross 2 different LoROM banks.

(ca65/ld65 linker specific commands).

If the SPC file is larger than 32k, you can add arguments to the .incbin command to split the file.

.incbin “MUSIC/spc700.bin”, 0, 32768


.incbin “MUSIC/spc700.bin”, 32768

The top one says copy 32768 bytes starting at 0. The second one (with 1 number) says to include from 32768 to the end of the file. The newest version of SPC_Init can copy the entire thing to the SPC RAM (even across multiple banks).



Let’s go over the music.asm file, which you should have grabbed from one of my example folders. I had to modify the original code to work with ca65.

SPC_Init – should be called at the start of the game, with interrupts off (NMI, IRQ, controllers). With AXY16 you load A with the address of the of SPC file (spc700.bin) and X with the bank of the SPC file, and JSL to SPC_Init.

By the way, running this function takes a long time. It could take 2 seconds or more.

SPC_Load_Data is an internal function, for loading data to the APU RAM.

SPC_Play_Song loads a song (data) to the APU RAM and then starts playing it. This also should be done with interrupts off. Note that this system only loads one song at a time to the APU RAM. If you have a song in and then load another song, it overwrites the first song.

With AXY16 load A with the address of the song data (like music_1.bin) and load X with the bank of the song, then JSL to SPC_Play_Song. Once it’s done, it will begin playing the song automatically.

SPC_Command_ASM is an internal function. It’s what sends signals to the APU.

SPC_Stereo is to set mono (default) or stereo audio. Load A (8 or 16) with 0 for mono, 1 for stereo. Audio channels can be panned left or right.

SPC_Global_Volume  is to set the max volume, 0-127. It can also be used to fade in or fade out. One of the variables is called speed, and it is the step value, to go from previous volume to the new volume. 255 is the default speed, which is instant change (any value >= 127 would be instant). Speed of 7 seems nice for a fade, and will take 2 seconds to transition. Don’t give it a speed of zero, the volume won’t change.

AXY8 or AXY16, load A with the speed of volume change (1-255), and load X with the new volume (0-127), then jJSL SPC_Global_Volume.

The SNES has a master volume variable, which affects all channels. That’s what this sets, and doesn’t affect individual channel volumes.

SPC_Channel_Volume sets the max volume for an individual audio channel. AXY8 or AXY16, load A with the channels and load X with the volume (0-127) and the JSL to SPC_Channel_Volume. I’m not sure what circumstances I would use this. Maybe to silence or dim a lead instrument, for a change in dramatic tone.

Note, the channel here is a bitfield, with each bit representing a channel.

0000 0001 = channel 1
0000 0010 = channel 2
0000 0100 = channel 3
0000 1000 = channel 4
0001 0000 = channel 5
0010 0000 = channel 6
0100 0000 = channel 7
1000 0000 = channel 8

For example, LDA #$42 (0100 0010) would effect channels 2 and 7.

Music_Stop stops the song. JSL here.

Music_Pause will pause and unpause the song (and not effect the sound effects that are playing). Load A (8 or 16) with 1 for pause and 0 for unpause, then JSL here.

Sound_Stop_All stops all sounds, song and sound effects. JSL here.

SFX_Play_Center plays a sound effect, pan center. With AXY8 or AXY16, load A with the # of the sound effect, load X with the max volume of the sound effect (0-127), and load Y with the channel (0-7), the sound effect should play. Channel needs to be higher than the max channel for the song playing. Therefore, you must reserve some empty channels in the song, if you want sound effects to play with it.

SFX_Play_Left, is the same, but pan left.

SFX_Play_Right, is the same, but pan right.

SFX_Play is an internal function that the 3 above functions call.

Streaming has been removed. See the 13th SNES example page for echo functions.

SNES Music 2


;copy the music code and samples to the Audio RAM 
lda #.loword(music_code)
ldx #^music_code
jsl SPC_Init

;turn on stereo sound
lda #$0001
jsl SPC_Stereo

…and at the bottom we have

.segment "RODATA6"
.incbin "MUSIC/spc700.bin"


Then I load the song, and start it playing (before I turn on NMI interrupts).

lda #.loword(song1)
ldx #^song1
jsl SPC_Play_Song

By the way “.loword()” gets a 16 bit value from a 24 bit label. ^ gets the bank of a label.


Now I just need to set up a trigger for the sound effect. We already have that yellow block triggering the screen to go dark, so I just snuck in a little more code there. I didn’t want it re-starting the same sound effect over and over and over each frame, so I added a variable to remember the LAST FRAME, if we were over the yellow block, and skip a trigger in that case.

cmp bright_var2 ;compare to last frame
beq Past_Yellow ;skip if last frame is true

lda #0 ;= ding
ldx #127 ;= volume
ldy #6 ; = channel
jsl SFX_Play_Center

Our song plays from channels 1-4 (ie. 0-3), and our sound effect uses 2 channels, so we could have set this to 4,5, or 6. This function is zero based index, ie. values 0-7. So 6 means it will play on channels 7 and 8. Sorry for flip flopping between zero based and one based numbers. Hope this isn’t too confusing.

However, if we loaded X with 0,1,2, or 3. It would not play. If we loaded X with 7, only the first channel of the sound effect would play.

Here’s a picture of the demo again. It looks the same as the previous example.


Here’s a Youtube video, if you want to hear it.




There are other programs for getting music onto a Super Nintendo.

You could use SNESMOD with OpenMPT. I still need to research this more before I can recommend it. I have heard that a version of SNESMOD by AugustusBlackheart and KungFuFurby is good. Sorry I can’t be more informative here.

Another program, BRRTools, can convert audio files to BRR. I haven’t used it, but the SNESGSS tool uses the same code. It says you can turn BRR samples into WAV and WAV into BRR. This could be a way to use existing BRR samples in our SNESGSS projects (by using this tool to convert them into WAV files first).


SNES main page