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The Cutting Room Floor:Content to expand

From The Cutting Room Floor
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Hi! This is a list I'm making as a sort of dump of things to be added that don't have full pages yet. Sort of a "I know there is something here, but we need to work on it" type of things. These pages don't even have articles; if they did, this would be better with something like Template:Investigate and/or Template:Todo.

If you know of something in a game that's not here but don't have enough knowledge to write about it (and there's no article, or the article really sucks) feel free to add something to the list here and hopefully somebody can look at it.

Items on this list should be removed whenever they've been sufficiently documented and article-ized, with any remaining information put as templates.

Link's Awakening sums it up best: 

Here is your
 clue.
Make all the red
 blue.

Apple

iOS

Mac

  • Angry Birds has some unused graphics, leftovers from other versions and unused text. Investigate what DebugConsole.lua does.
  • Osmos has some unused text.
  • Quinn - replacing ConnectPanel.nib with DebugPanel.nib will open a debugging window when clicking Connect to Server.
  • Ferazel's Wand has some unused music, possibly more.

Atari

400/1200XL

  • Lots of Easter eggs in various games (mostly developer messages) can be found here.

2600

5200

  • The Atari 5200 BIOS has the message "copyright atari" in the ROM. Is this used?
  • Lots of Easter eggs in various games (mostly developer messages) can be found here and here.

7800

Jaguar

Lynx

Atari ST

Commodore

C64

  • This thread from 2008 mentions a lot of unused things in various C64 games (sprites, hidden messages, other crap). Someone with better knowledge of old C64 games than me should check this thread out (I only code the C64, I don't play it...).
  • A tape loader used in various games (Sanxion, Mega Apocalypse, etc.) apparently contains the string "HACKERS FUCK OFF AND DIE" (of course this doesn't show up in most/all of the cracked versions that have completely different loaders). By extension, the string probably appears in a number of different games. I wonder how that should be handled?

Amiga

  • Ambermoon is the sequel to Amberstar RPG, and you could invite some of the developers into your party inside the cheatroom.

Microsoft

PC

Xbox

  • Halo has an unused enemy, the Covenant Engineer. Also, there's a flamethrower that was later used in the PC/Mac version.

Xbox 360

  • Mass Effect 3 has a beta leak?!? Video.
  • Perfect Dark has development builds containing a debug menu, which were leaked on PartnerNet.
  • Wheel of Fortune has a ton of unused voiceovers that likely also apply to the 2012 PS3 version (due to THQ's bankruptcy in December 2012, these are unlikely to be used in DLC).
    • Puzzle categories that are rare (Headline; Fictional Family), haven't been on the show in years (Best Seller; What Are We Making?), or never existed on the show (Classic Rock; Where Are We Going?). Among these are eight former categories well-known for offering cash bonuses, including Next Line Please, Where Are We?, Who Is It?, and Slogan.
    • Variations on "Sorry. All the consonants are gone and no one solved it. That money will go unclaimed." This is used in the Wii U version if everyone has less than $250 and cannot solve the puzzle, though.
    • Wheel dollar values that either don't exist ($475; $4,000; $10,000) or have not been on the show in decades ($275; $2,000).
    • Intro voiceovers of "Something seems strange. Have we been here before?" and "Well, now this brings back some memories.", labeled PAT_BANTER_INTRO_RETRO. (These might be used in the "1980s set" DLC, though.)
    • All of the above sound files are Pat's. Vanna's sound files contain explanations for a minigame called "Pick One", and mentions both Circle Pads and Analog Sticks; this may indicate that a 3DS version was in the works at some point.

Windows Phone 7

Windows CE

Nintendo

NES

  • Lots of released prototypes from Lost Levels.
  • The Bugs Bunny Crazy Castle has unused graphics.
  • Not known but a request (from andlabs): does the Famicom version of Choplifter contain any removed references to Sega? It's closer to Sega's 1985 arcade version than any of the other versions.
  • Excitebike contains two options on the Design menu, Load and Save, neither of which are operable in the NES version. Apparently they were intended to be used with a storage device that never saw the light of day (possibly a tape drive, seen in early NES mockups). Both options are fully programmed and would function as intended if this device were present. The loading and saving system was added to the 3DS 3D Classics version.
  • Jeopardy! has an unused Coca-Cola logo, much like Wheel of Fortune. GameTek's other game show titles might have unused stuff as well.
  • Kid Icarus has a lot of FDS -> NES differences. This has most of em, but there seem to be a lot of different FDS wavetable-enhanced sound/music like with Zelda/Metroid judging by the TAS I watched, assuming the sound effects in the 3DS 3D version are the FDS ones. (Rather likely, since the noise when you put Kid Icarus: Uprising is a jingle that matches the 3D version and not the NES version.) Also, apparently they fucked up the password system on the Virtual Console port?
  • Lunar Ball (NES) - this NSF - is track 15 used? (Pointed out to andlabs in IM by Sik, who "had that game since I was 3 years old".)
  • Mother has some early graphics/version differences with the English prototype. Some info is here and here.
  • NES Control Deck Test has lots of unused graphics. (Note: This is not the same cartridge as Control Deck Test Cartridge.)
  • Solstice has lots of content in two YouTube videos, showing development of the game itself: here and here.
  • Totally Rad has a LOT of regional differences not yet in the wiki.
  • Ultima III has some unused NPC sprites, including a jester.
  • Yo! Noid has major regional differences.
  • Zelda II: The Adventure of Link - there's reports of an unused side-scrolling area if using an overworld walk-through-walls game enhancer code to get into a battle on a mountain tile (which isn't possible normally).
  • Do any of the following have debug modes? This follows from my (andlabs's) observation that early Now Production games (at least on the NES and Genesis) all have debug functionality left in:
  • Pony request from andlabs: nesdev claims Tiny Toon Adventures 2 uses the VRC7 but not the audio portion; is there leftover ROM data that indicated it was used at some point? (yes it was released in Japan, as Tiny Toon Adventures 2: Montana Land e Youkoso)

NES (Unlicensed)

  • Donkey Kong Country 4 has some unused music and sound effects.
  • Doraemon has some unused graphics, some of which are Somari leftovers.
  • Earthworm Jim 3 has lots of unused music.
  • Harry's Legend has lots of unused graphics.
  • Mortal Kombat II and III have source code in the ROM.
  • Pocket Monster has some unused graphics, source code, and text leftover from a multicart.
  • Pocket Monsters Red, Pokémon Gold, and Street Fighter II: The World Warrior have some weird unused text.
  • Pokémon 4-in-1 has some source code in the ROM.
  • Poké Tetris has unused text leftover from a multicart.
  • Rocman X has unused graphics.
  • The Lion King III: Simon and Pumba and The Lion King 5 have a developer message and source code in the ROM.
  • Super Mario World (NES Bootleg)
    • This page mentions unused sprites of Lakitu, Spiny, Bonefish, Bullet Bill, "clapping" Chargin' Chuck, and "digging" Chargin' Chuck.
    • There are two different versions: a standalone cart, and the one on this multicart. The standalone version ends after the fourth castle, has a different-looking world map for the areas that can't be accessed, and incomplete versions/graphics of the levels accessible normally in the multicart version...which essentially makes the two versions a prototype and final game, respectively. There was a page that looked at the proto and showed off unfinished sprites of Bowser (it also had a page on Super Mario 3 Special, which may also have unused stuff), but I can't remember anything more than that.
    • There's also a bug where one stage (a Butter Bridge level) always begins at the midpoint.
  • Super Contra II
    • Unused menu leftover from a 17-in-1 cart by Super Technos.
    • There is an unused level select, too.

Game Boy (Color)

SNES

  • Aero the Acro-Bat 2 has unused text strings starting at $05CB70: LIVES ON LIVES OFF and ENERGY ON ENERGY OFF, which were used for a cheat in the Genesis version. There isn't any code left that points to these strings, so the functionality probably no longer exists.
  • Aretha - gedowski documented some of the debug mode here.
  • Batman Forever has a hidden level select.
  • BioMetal has regional differences, including an odd one with the soundtrack (US/EU versions have an SNES-chip version of 2 Unlimited's "Get Ready"...no joke).
  • Clock Tower
    • Some unused items.
    • "Changed" graphics like the below, at least one of which is the hole in the wall where Jennifer's dad is.
  • CutThroat Island PAL version has French, German and Spanish languages, but no language select option anywhere? USA version, too?
  • Famicom Tantei Club: Part II
    • We need to figure out read that text; Tomato told me about it long ago, but I never found it.
    • There's a lot of "changed" graphics using sprites in some places; e.g. a background clock replaced with a sprite one.
  • Judge Dredd has a preview version from CES 1995, with several stages and other things that were deleted from the final, as well as various other changes.
  • Mario Paint has a prototype.
  • Star Fox 2 - see here.
  • Super Mario All-Stars + Super Mario World may well have unused World and/or All-Stars stuff, or possibly removed some from either half to make room.
  • Wizardry V: Heart of the Maelstrom - BMF54123 and gedowski research the cheat code(s) here.
  • There was that one Satellaview game that had a version of "Last Christmas" that still isn't up here...?

Nintendo 64

  • Command and Conquer supposedly has a debug mode, but I can't get it to work. Anyone with better dexterity wanna give it a try?
  • Jet Force Gemini is supposed to have some kind of test map. Also, there's a kiosk demo that has some differences from the final.
  • Ogre Battle 64: Person of Lordly Caliber has a bunch of unused stuff; some can be found in this GameFAQs guide.
  • Quest 64 has some unused music. Check the USF rip for a starting point.
  • Superman 64 has a beta, some remnants in the final game from said beta, some textures supposedly taken from GoldenEye 007, and given how much of a cesspool the game is, it most likely has more stuff.
  • Turok 2: Seeds of Evil has an awesome demo version.
  • Wheel of Fortune
    • The Surprise wedge appeared in prerelease screenshots and the instruction booklet, but isn't present during gameplay. It might still be in there, just dummied out.
    • Possibly other stuff; this was GameTek's last Wheel game, released seven months before the company closed down, and there are quite a few weird things with it (likely-incomplete list here) that may suggest the game was released in an incomplete state.

Game Boy Advance

GameCube

  • Cars has some debug features.
  • Eternal Darkness: Sanity's Requiem has E3 demo menu graphics.
  • Pikmin has a lot of stuff. It's best to just go here.
  • Metroid Prime has a ton of revision and regional differences. These have been documented at Metroid 2002, but having higher quality video (or screenshots where they'll suffice) in the article would be great.
  • Metroid Prime 2: Echoes also has some differences, mainly in the Japanese version, although the PAL version has some too. Samus.co.uk had these documented, but pretty vaguely.
  • TimeSplitters 2 has an unused Gothic MapMaker tileset accessible with AR codes. IIRC there are also unused weapon models and the sci-fi handguns with alternate tracer colors used by the aliens in the Planet X mission can be used by the player.

Wii

  • The console itself had some early plans for the Virtual Console. Maybe there's more hidden things in the Virtual Console files?
  • A Boy and His Blob has unused .wav sound effects, and possibly a test room.
  • Arc Rise Fantasia
    • Ten(!) test rooms that need to be file swapped to work.
    • The US version actually added more voice acting for battles.
  • Castlevania: Judgement
    • Initialization test text.
    • Leftover menu/HUD graphics from Naruto: Clash of the Ninja - Revolution.
    • Early stage copies.
    • Placeholder graphics.
  • The Conduit has a test room only accessible through private online multiplayer and cheat devices, as well a early version of Sanctum, and a debug mode. Also, leftovers from the scrapped LAN multiplayer exist and can be undummied out.
  • Donkey Kong Country Returns supposedly has an unused 4-player mode.
  • Epic Mickey
    • Placeholder files.
    • Developer notes.
    • A list of programmers.
    • Command prompt commands.
    • Debug lists and files.
    • .HXK version conversion code.
    • A countdown list.
    • Unused fonts.
    • Unused graphics.
    • Unused .bik video files.
    • Launch options.
    • References to test levels.
    • A version number.
    • A list of names beginning with the letter S and C.
  • Fire Emblem Wii has much more regional differences that I can think of.
  • Kirby's Epic Yarn has plaintext setting files on the disc which suggest a lot of debugging options left in the game.
  • Mario & Sonic at the Olympic Winter Games also has several unused/unplayable characters.
  • Mario Kart Wii has several unused graphics and reports of Rosalina's voice mysteriously playing instead of a Mii's voice. Likely an incorrect voice file, but could the original voice file still be in the game?
  • Mario Sports Mix has lots of unused models and textures.
  • Monster Hunter Tri has many unused icons.
  • Rhythm Heaven Wii has regional differences:
    • A minigame involving a manzai comedic duo: a "boke" who says stupid jokes, while the player is the "tsukkomi" who must either laugh or scold the other one. It was removed from the US version and replaced by a remake of a minigame from the first game.
    • The European version has dual audio.
  • Sonic and the Secret Rings has some test files and some test videos (maybe not unused).
  • Tales of Graces has dummied-out artes: Sophie's Final Fury and Blast Heart, and Cheria's Innocent Shine and Meteor Storm. Either playable or sound-only, there is a huge amount of them. There also seems to have traces of a certain "DEVD," thought to be a missing character (much like PAT in Vesperia). It has also revisional differences.
  • Wario Ware: Smooth Moves
    • Unused test graphics.
    • Censored minigames from localizations.
    • Despite not normally being visible, the room of the Nintendogs minigame is fully furnished.
    • Pretty sure the man-lady in the Wario PI game has more graphics than what's shown on the magnifying glass, as evidenced by what appears to be a heart flashing on the chest area when you get the right focus.
  • The Wii series:
  • Wreck-It Ralph has some test rooms. Check if they work.
  • A small number of demo discs (very small, almost definitely under ten) were produced. Some of these are "Activision Exclusive Playable Demo Disc" with demos of Big League Sports, Dancing with Stars: Get Your Dance On, Madagascar: Escape 2 Africa, Monkey Mischief, and Shrek's Carnival Craze; individual discs for Boom Blox, Help Wanted: 50 Wacky Jobs, Monster Hunter Tri, Muramasa: The Demon Blade, Rooms: The Main Building and Sonic and the Secret Rings.

DS(i)

3DS

  • Epic Mickey: Power of Illusion - it's painfully obvious they scrapped the whole Alice in Wonderland world, plus some levels here and there (link). There is bound to be at least unused spritework, but until we can peek inside 3DS ROMs we can't say for sure.
  • Mii Maker has regional differences (Region-locked Mii QR Codes for Special Miis).
  • Nintendo Video also has some regional differences (Different videos released for each region).
  • Pokédex 3D has version differences (Pokédex 3D Pro, sold separately, features all 649 Pokémon instead of just the Unova Pokémon, and has various special features not included in the original).
  • Swapnote has some regional differences (Different stationaries distributed, some simply a matter of different game titles for each region [ex. "Crashmo" in NA, "Fallblox" in EU], and that it's called Nintendo Letter Box in Europe).
  • Mario Kart 7 has a prototype - the sort that Mario Kart DS has.
  • Check Rayman Origins for anything changed from the delayed release.
  • Due to the rest of the Paper Mario games having extensive unused content, Paper Mario: Sticker Star should be checked, though that will probably require the as-of-yet-nonexistant ability to look through 3DS ROMs.
  • Luigi's Mansion: Dark Moon has regional differences [1]

Wii U

  • Jeopardy! and Wheel of Fortune very likely have a plethora of unused images and such for the online gameplay features they trumpeted in promos and even on the boxes but never actually delivered. Also, given that these were THQ's last games before filing for bankruptcy a few days later (probably why they suggested the consumer pay $20 more for inferior products), they might have some other unused stuff that may overlap with those of the Xbox 360 and PS3 versions.

Panasonic

3DO

  • Gex has a level select code which has several scrapped and incomplete levels.

JR-200U

Sega

Master System

Genesis

  • Lots of Genesis games in general, thanks to drx.
  • The Sega Channel BIOS has multiple demo carts.
  • Aquatic Games might have some region differences. On my Mega Drive, in 100 Metre Splash, Pond makes some splashes on the water, as well as the accompanying sounds when he runs fast. This doesn't happen on Gens with the US version of the game. Region difference, or emulator flaw?
  • Batman Forever has a hidden level select.
  • There are Doom (32X) prototypes with level design that is closer to the PC version, plus different texturing than final (not PC texturing, as the article claims), but crash after level 5.[2] It's probably worth looking into whether the other levels exist in these earlier builds and if they can be loaded/played.
  • Ecco the Dolphin and its brethren have loads of stuff in their prototypes.
  • Flicky has differences between the Genesis and Arcade versions. Worth noticing?
  • James Pond: Underwater Agent has two unused themes.
  • Jennifer Capriati Tennis has a debug mode.
  • Sonic & Knuckles has a leftover palmtree sprite from Sonic the Hedgehog 3.
  • Toy Story
    • Has an MOD player and a MOD. Not cut, but still interesting trivia.
    • Also has an unused song, said to be used in the Roller Bob level in the PC version, like in the SNES version.
    • Looks like there are region differences too.
  • Wimbledon Championship Tennis has a debug mode.
  • World of Illusion (starring Mickey Mouse and Donald Duck) - lots of stuff here.
  • Zombies Ate My Neighbors has an unused track.
  • andlabs's "so I don't forget" list of things to look into:
    • Crusader of Centy's prototype, US final, and SK final has stuff from Beyond Oasis/The Story of Thor, which came out more than 6 months later (wtf)
    • Chase HQ II plays one song in the ending but Super HQ plays two? (region difference)
    • There's that unused item art in Madou Monogatari I that I found long ago but without knowing what the item palette(s) are it looks like a pile of shit (literally) :|
    • Darius II/Sagaia - GameFAQs doesn't seem to have a clear idea of what all the cheat codes are? Super Hard Mode triggers a string SPECIAL MODE, for instance... Also are zones Z1 and Z2 used? Also this
    • Chou Kyuukai Miracle Nine appears to have a debug menu of sorts:
00038A:60     (bypass checksum)
FFED84:30     (set game mode)
0065B6:4E71   (nop out rts blocking the menu)
Not sure if it is used or not or if it has an effect as pressing start after disabling the RAM code just brings you back to the menu, so I have to see if it's supposed to come from elsewhere by disassembling all the game's code :/
    • I'll probably remember this by tomorrow morning but: Final Blow has the red Taito logo; it's loaded to VRAM (also I have to see how strings are stored in that game; it looks like the game can pick and choose characters to load and where?)
    • Feng Kuang Tao Hua Yuan has a block of either unassembled helper code or compiler assembly output, not sure which... but the present dump is not from the original cart, but from a mainland China(?) "rereleasse" so I'll wait until we can get an authentic dump
    • Simple sound test codes... documented in the manual or not?
      • Mahjong Cop Ryuu - A+Start on title screen
      • Party Quiz Mega Q - A+B+C+Start on title screen
    • Crack Down - Japanese characters loaded in title screen? there don't seem to be any in the intro or on the title screen... or anywhere in the game...
    • Rugby World Cup 95 appears to have each of its functions suffixed by the function's name (like a symbol table but scattered throughout the ROM). Also "Dave Was Here!"
      • There's a flag that if set to nonzero, the game loop will enter an endless loop that cycles through each of the big-board animations that can show up; check at $13DA and loop immediately afterwards, checks -$6EA1(a5) where a5 is $69C (yeah it's one of those games)
      • Turns out many, if not all, of the Extended Play Productions games have these symbol setups...
    • Hellfire: "M2612 SOUND REAUEST TABLE "/"ERRORS=0000"/" 0221 END"
bah it's located in the sound driver
      • Also
pietro@pietro-laptop:~/ida_linux$ bgrep '0D 1E 0D 0E' Hellfire*
Hellfire (Europe).md: 000120f5
Hellfire (USA).md: 000120ff
for the hard ending text... but the EU version wasn't Seismic...
While investigating the M2612 thing:
00012BAE  67 76 30 3C 00 E1 22 3C  00 03 E0 00 34 3C 04 06
00012BBE  4E B9 00 00 5F 84 70 02  22 3C 00 03 69 A0 34 3C
00012BCE  03 F2 4E B9 00 00 5F 84  30 3C 24 06 32 3C 23 9A
00012BDE  74 0E 76 0E 4E B9 00 00  65 5C 23 FC 00 01 25 6C
00012BEE  00 FF 00 9A 4E B9 00 00  60 70 30 3C 00 10 22 3C
00012BFE  00 01 25 6C 34 3C 00 40  4E B9 00 00 5F 10 30 3C
this is nonsense for Hellfire (begins with a conditional branch to noncode, calls the middle of functions at non-entry points, and the last call jumps inside an opcode)
...and is only in Hellfire (only in JP version)? something's not right here
not in arcade versions
    • Pac-Attack: are the credits immediately after puzzle mode?
    • shobiz found a lot of stuff in Quackshot
    • Jantei Monogatari has a button code on the main menu that seems to affect the starting state of the game in some weird way that I can't tell
    • Janou Touryuumon has a region check... that reports that it only runs on NTSC Genesis (instead of the correct NTSC Mega Drive)
    • Eliminate Down: A+B+C+Start during the minigame goes back to its title screen... is this documented?
    • Mega SWIV: word $80 is used as a flag to do something when you get hit by a bullet, but what?
    • Rainbow Islands Extra has a title screen cheat code: Up B Down Left C A A* B** C***. The last three buttons are so marked because you can stop at any one of those and only get the effects of the buttons you pressed. I *think* A makes you faster? I don't know... The code is checked on the main menu too. None of them appear to be related to infinite continues.
      • B button: [00:18] <Mister_Argent> Hey, i just tried that RI cheat code. i started off with Double Rainbows, but i don't know if that's normal for extra mode or not.
    • King Colossus: down up up down right left right left on the game over screen continues -- is this in the manual? even if it is, an additional right right is at the the end of the code, but the game stops after eight button presses
    • Mega lo Mania/Tyrants: Fight Through Time:
; not the actual addresses as the data is copied to RAM
[03:06] <andlabs> seg001:00FF0162 aSelect:        dc.b 'select',0
[03:06] <andlabs> seg001:00FF0169                 dc.b '-----------------',0
[03:06] <andlabs> seg001:00FF017B aToPlaceIn:     dc.b 'to place in',0
[03:06] <andlabs> seg001:00FF0187 aBuildingPorts: dc.b 'building ports',0
...
[03:07] <Flygon> I don't recognize the term 'building ports', though
[03:08] <andlabs> I wouldn't know
[03:08] <Flygon> Unused string?
[03:08] <andlabs> it's in the list
[03:08] <Flygon> Indeed
[03:08] <Flygon> Hmm
[03:08] <andlabs> so unless the specific index to get to that string is never loaded, then
[03:09] <andlabs> I would need to find out which bytes are loaded into the code to look up strings
[03:09] * Flygon should consider creating a Mega-lo-Mania fan-forum x3
[03:09] <andlabs> if the one that indexes that port string is never used... that string is unused and we have a mystery
[03:09] <Flygon> Indeed
[03:09] <Flygon> Good thing only one of the developers are dead...
[03:09] <Flygon> They appear quite cooperative to fan questions
[03:10] <andlabs> http://www.gamefaqs.com/genesis/586569-tyrants/faqs/38544 check the author
FAQ has no mention of ports...
      • The Japanese version has bits and pieces of SNASM68K left in it
      • The later European version has, in its ROM header, a serial number field that indicates a CD version was in development? I need to check Sega CD headers
    • Mary Shelley's Frankenstein has an actual symbol table? (as opposed to Rugby World Cup 95)
    • Bonanza Bros. seems to have text for a stage select
    • Mega Bomberman - word at $2D8 in US version - if changed to a nonzero value, the CRAM is altered on every main loop cycle to show something (CPU usage debug?)
    • Socket
[22:54] <GenesisFan64> don't forget the unused song, B G M 19
also various Unknown labels in GF64's disassembly
    • Pat Riley Basketball (at least the JP version) has a Sound and Animation Test; the sound part works but not the animation...?
    • Double Clutch has a cheat code it checks for right at startup! ...but my patch codes to hang the game when it checks the variable it sets when the cheat code is activated don't seem to do anything... does it happen when not in a race? I would need to beat a race to find out...
    • Find FRUITMEISTER I in an earlier Eurocom Genesis game (have t wait for SeanieB to finish changing Sega Retro hard drives before I can get a list)

Genesis (Unlicensed)

Game Gear

Pico

  • Game wo Shinagara Oboe You! Kantan Wakuwaku Keyboard (todo: verify name?) has a keyboard test, but A) is it already documented in the official documentation and B) nothing emulates the Pico Keyboard, so it's useless right now.
  • Tails and the Music Maker has some unused graphics.

Saturn

  • The Sega Saturn BIOS has revisional differences.
  • Spot Goes to Hollywood has a level select.
  • Dragon Force, Battle Arena Toshinden URA, and D-Xhird have debug modes that can be accessed without Action Replay codes. The D-Xhird debug code is accessed via a D-Pad input during the Takara logo, but what is it?
    • Andretti Racing has a rather fantastic hidden menu that allows you to adjust your fuel amount, number of laps, enemy AI and even the centrifugal force to make slipstreaming easier or trigger incredible crashes where your car flips as if there is no gravity!
    • NASCAR '96 has a debug menu that lets you alter many aspects of the game and play in Wireframe mode.
    • Wipeout 2023 (aka Wipeout 2) also has a debug mode which lets you play in Wireframe mode, as well as many other cool alterations.

Dreamcast

Sony

PlayStation

  • Bounty Arms is an unreleased action game whose demo apparently includes screens and graphics never seen otherwise.
  • Crash Bandicoot has unused "Time Crate" graphics found in VRAM.
  • Gex 3: Deep Cover Gecko has a prototype version with many differences on several Eidos demo discs - Volumes 4 (SLUS-90051), 5 (SLUS-90065), and 6 (SLUS-90074).
  • Silent Hill - yes, I know there's a page on it, and I know what I said at the top. There's a whole lot of stuff buried on the disc, though...some found, some not.
    • There are some demo discs floating around that have different layouts for some things.
    • Some unused areas on at least the Midwich School map, and probably others knowing this game. Some of them are documented in a YouTube video (named "midwich.wmv", I think? It's really badly done though). It would be nice to have 3D models of these areas ripped, since it'd be clearer than in-game.
  • Spot Goes to Hollywood has a level select.
  • Spyro the Dragon apparently has some unused music tracks.
  • Tomba!
    • Has a lot of unused items.
    • Has a few unused graphics on the CD, I think?
    • Has a map selection utility, too, I think. (It does, right?) Along with some unused map references?
  • Xevious 3D/G+ has a hidden message in a uuencoded file, which contains a dev message in a text file and a .wav file. Here's the guy who found this, originally

PlayStation 2

PlayStation 3

PSP

Misc.

Adobe Flash

Arcade

  • Dangun Feveron supposedly has several unused music tracks.
  • Dragon's Lair has unused animations and a prototype.
  • Gradius has one unused song, and Gradius III has three unused songs (Gradius I level start, Gradius II high-speed level, and a fanfare).
  • Gokuyou Parodius has unused music in the MAME ROM.
    • In fact, all the Parodius ports are usually different from each other. Parodius Da!: Shinwa Kara o Owarai e has the most noticeable of cuts, with two whole levels disappearing in various ports. I can't remember which game, but Konami chose to change the BGM of a level from "That's The Way I Like It" to avoid copyright.
  • Marvel Super Heroes vs. Street Fighter has more unused graphics and voice clips.
  • Marvel vs. Capcom has some graphics and voice clips.
  • The Metal Slug series - so much stuff here.
  • Someone figure out how the Mortal Kombat games compress their graphics so we can sift through them? Please?
  • The Punisher has unused graphics and an unused bonus stage.
  • Samurai Shodown V has extensive regional changes - from cutscenes to proper endings.
  • Street Fighter III: New Generation has unused voice clips.
  • Street Fighter III: 2nd Impact also has unused voice clips.
  • Street Fighter III: 3rd Strike also has lots of unused voice clips.
  • Time Crisis has an unused song?
  • Time Pilot has revisional differences
  • Time Pilot '84 has text for a debug menu and an anti-piracy message.
  • andlabs' list:
    • Borench contains leftover copyright text from Bloxeed; need to see if it contains the full code for the screen
    • Space Harrier also has the bin-chan used too many colors error
      • Dynamite Dux might have a different one: "OBJECT COLOR BANK OVER"? "OBJECT COLOR ENTRY OVER"?
    • Wrestle War has an anti-piracy message in plaintext which is probably used but ("COPIED AND SOLD WITHOUT"...)
    • Dynamite Dux (again): "SELECT COURSE BY LEVER"?
    • Viewpoint has lots of debugging stuff? "H-POS %04x Z %04x" "V-POS %04x X %04x" "WALL-L %04x R %04x" "SHILD %02d" "KEY RECORD FULL"?
      • Racing Hero (same programmers) too; also AB Cop?
    • Thunder Force AC: Is SELECT BY JOY STICK PUSH ANY BUTTON TO RECORD TIME part of the name entry?
    • Crack Down has a sound driver test? "Sound Note Oct Level 0123456789ABCDEF"
    • Shadow Dancer has a round select? "SELECT THE SCENE"/"ROUND STAGE"/"COUNT UP DOWN BY SHOT JUMP BUTTON"/"START BY MAGIC BUTTON"
    • The Irritating Maze: "You are died ! Time Up !! " ?
      • "IDAXAN"? (multiple) This is probably just an opcode but who knows
      • " DENGEKI IRA-IRA BOU"... isn't it Denryu Ira-Ira Bou
      • OH BUT THERE ARE SOUND TEST STRINGS! Since the game never had a home port and the MVS service mode doesn't have a sound test...
      • "COMING SOON"? (multiple)
      • "SILENT@MODE"? "POSITION CHECK ROUTIN"? repeated Stage Select/Course Select strings for when starting a game?
    • System 18 Bloxeed: "SEGA PRESENTS"/"SPECIAL THANKS TO GOD"/"AND EVERYONE ELSE !!"? (consecutive in ROM) "GOOD"/"DESUNE!"/"BONUS"? (together, but not immediately consecutive)
    • After Burner II:
      1. The hidden messages (different ones) are there, and people have gotten them to show up, but we don't have a definite clue as to how written down
      2. Is there a way to play versions of the music with melodies? Some of the home ports have melodies added to Final Take Off (Commodore 64, PC Engine, etc.) but here's a version of the arcade song with a melody that sounds very FM-y?
    • Tetris (Sega) and Flash Point - "OVERFLOW" in the RAM/ROM checks?
      • Flash Point:
NORMAL OJAMA
        TETRIS TETRIS
TIME
NORMAL  
ITEM USE
OJAMA   
        GIVE UP
YOU ARE
CHAMP!
    • General TODO: look for any Neo Geo games that have a custom eye catcher but don't use it
    • Namco System 2 games (search for Now Production continues):
      • Assault uses " RIDDLE OF RUBY " as a startup check string... is this significant in any way? there is no game by that title...
    • Cameltry: investigate word flag at beginning
    • Hebereke no Popoon: "END_OF_DATA_SECTION." and strings related to cutscenes and character names? and then " CHR TEST" near the beginning of the ROM where there is a copy of the test mode strings?

BBS Door

ColecoVision

Game.com

GP32

HTML5

J2ME

Magnavox Odyssey2

NCR Decision-V

Nokia N-Gage

Nuon

Philips CD-i

Plug & Play

Sharp X68000

  • Gradius has a sound test.
  • Lots of Easter eggs in a lot of games (mostly developer messages, images and sound test). How to access them can be found in Japanese cheat pages here.
  • Metal Sight apparently has an unused song; or at least that's what the description of MDX/System Sacom/Metal Sight/METAL02.MDX in mdxo_mxdrv_complete.ra_ seems to imply. The file doesn't work with either mxdrv or mdxplay... (TODO try the Windows-based players)
  • D-Return - the following in mdxo_mxdrv_complete.ra_ are marked unused:
Binary file ./NOP/D-Return/D_RET31.MDX matches
Binary file ./NOP/D-Return/D_RET35.MDX matches
Binary file ./NOP/D-Return/D_RET36.MDX matches
Binary file ./NOP/D-Return/D_RET37.MDX matches
Binary file ./NOP/D-Return/D_RET38.MDX matches
Binary file ./NOP/D-Return/D_RET34.MDX matches
Binary file ./NOP/D-Return/D_RET33.MDX matches
Binary file ./NOP/D-Return/D_RET32.MDX matches
  • Genocide 2 - mdxo_mxdrv_complete.ra_ marks the following as unused:
Binary file ./Zoom/Genocide 2/GENO2_29.MDX matches
Binary file ./Zoom/Genocide 2/GENO2_25.MDX matches
Binary file ./Zoom/Genocide 2/GENO2_28.MDX matches
Binary file ./Zoom/Genocide 2/GENO2_27.MDX matches
Binary file ./Zoom/Genocide 2/GENO2_24.MDX matches
Binary file ./Zoom/Genocide 2/GENO2_31.MDX matches
Binary file ./Zoom/Genocide 2/GENO2_30.MDX matches
Binary file ./Zoom/Genocide 2/GENO2_26.MDX matches
Binary file ./Zoom/Genocide 2/GENO2_23.MDX matches

TurboGrafx-16

  • Blazing Lazers and Devil Crush - is sound 40 ever used?
    • Alien Crush, Cyber Dodge, Cyber Knight, Xevious: Fardraut Densetsu - do they have this sound?
  • Lady Sword - hidden developer diary in the script - translation in the readme for the translation hack.

Vii

  • 10-in-1 has some unused text. Check to make sure that it wasn't added in by whoever dumped the ROM.

Watara Supervision

ZX Spectrum

  • Manic Miner has a cheat mode accessible by typing 6031769.
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