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Author Topic: Personal list of NES Game Genie codes  (Read 782 times)

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Offline JWinslow23

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Personal list of NES Game Genie codes
« on: April 15, 2017, 03:33:00 am »
@DJ Omnimaga wanted me to make this, so I am :P

I have an Everdrive N8 and an NES at home, and I love to play on it often. One thing that's sometimes fun to do, besides playing the games, is making up useful, funny, or just interesting Game Genie codes. I will post new codes I make for new games as I create them.

Also, yes, every code here is of my own creation. Almost.

Big Bird's Hide & Speak
ASETPAEYYou will select the right person, no matter who you select (game might softlock)
ENKLTTEIEveryone, no matter if they're the right person, nods their head after you choose them
ESETPAEYYou will select the right person if you select anyone that's not him
PEUTIAGAYou only need to select 1 person correctly to win the round
YLXVUTYTBig Bird NEVER speaks
ZZEUTZTZAs soon as the characters enter, they are all Ernie; game softlocks after round

Blurred Lines 2048 (yes, that's a thing)
AAATATOnly 4 tiles spawn
EIIVTGMute the DPCM channel (no "Hey hey hey"s or "Everybody get up"s or similar will play)
ZEYVAIAlternate code to AAATAT

Dr. Mario
EAAOUTPills appear at the beginning of each round instead of viruses
ENLEUGPills float in the air, instead of falling
IXPAGZThe last music track to play will continue to play through each level
GOALOKAlternate code to TELAEI
TELAEIThe game thinks it's being pirated (crashes when you place a pill)
YUPAEYPlace viruses instead of pills

Kirby's Adventure
AAAPKTInfinite energy

Mario Bros
ENTSZZEarthquake when POW block is hit

Pac-Man
AYATLAOnly need 1 dot to win

Sesame Street Countdown
ASPLULEvery number you choose within the level, no matter what, is counted as correct
AYIZELThe Count says that every number is correct, but it might not be
POPZAANo matter what number you choose, The Count will always say a glitch number called "ah ah ah"

Summer Carnival '92 - Recca
AXUSYKGG+KSKIPGUIActivates an interesting (unused) intro: the SEGA logo and jingle appear, then explode, and then the Nintendo logo drops down and plays the Game Boy startup sound effect

Super Mario Bros
(click to show/hide)

Super Mario Bros 2 (USA)
AENEOGPPEveryone can float by holding A
AEOUETTPThe screen is always shaking as if you just threw a POW block; strange gravity with some objects
AESOTAIAPull up a big vegetable to freeze time
AEUEKKGLJump way higher than usual
AIUENLEYPress UP and DOWN to climb invisible vines (doors don't work; you must climb down in front of them)
AYOENGEIJump in midair
EEEAXXEKNo matter how many lives you lose, you never get a game over
IENOTSLPSnifits spit Snifits (and they spit Snifits who spit other Snifits, etc)
KEOOXXSEThe Super Mario Bros 1 theme plays at the title screen
OXXOKAEU+VOXOSAOOShells bounce off obstacles
SXOUXVVKThrow down a POW block, and kill every enemy in sight until you go through a door
TONOTSLOSnifits spit eggs
ZAXPGGALSubspace looks normal (but with graphical glitches)

Super Mario Bros 3
AATEVTPause is disabled
ALUZZIYZFire Mario now looks more like he did in SMB1
AOZULTImmediately get forced into an unused level (possibly a rejected World 6 level)
EIGXLTIf you duck on any platform for long enough, you will fall through to the background
EYEZEZEITurn into Fire Mario when collecting a Fire Flower while small (instead of turning into Super Mario)
EYUZXGEITurn into Raccoon Mario when collecting a Super Leaf while small (instead of turning into Super Mario)
LPOGVPYXPress Select to toggle invincibility
GGUXSKXV+KZUXNKXV+OGUXVKXVActivates Debug Mode on the menu if holding A+B on controller 2
NNXXKGAEAlways run as if your P-Meter was full
PAIUUTYou fall through to the background on white blocks instantly
ZPXXTSZXLuigi is usually a slightly lighter green in-game than on the map screen; this code makes the color consistent

Tetris (Nintendo)
AYIAEPPieces go down faster when you hold DOWN
ENTONAThe demo is desynced; you get the same pieces every time you play
EYTZAGPress START at the title screen to immediately skip the copyright notice
PALEGZShorter wait at the copyright notice (not too noticeable, though, to be honest)
ZALAAPPartly-functional 2 player mode!
  • Combine EYTZAG and PALEGZ to skip the copyright notice altogether!
« Last Edit: August 12, 2017, 08:17:49 pm by JWinslow23 »


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Re: Personal list of NES Game Genie codes
« Reply #1 on: May 03, 2017, 05:50:57 am »
Thanks for those codes. I haven't gotten any time to try them as I got sidetracked by many other things, online and offline. I'll take a further look later, though. I'm particularly interested by the SMB/SMB3/Tetris ones. Also wtf about the 2-player Tetris mode? Do you mean the game includes an unfinished one?
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Offline JWinslow23

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Re: Personal list of NES Game Genie codes
« Reply #2 on: May 03, 2017, 03:40:48 pm »
Yes, Nintendo's Tetris for NES originally was going to include a 2-player mode. It got cut, but most of the code was left in the game, and is functional (but it crashes if anyone tops out). That code enables it. It's most comparable to Battle Mode in later Tetris games, with each player even sending garbage lines to the other player upon clearing lines. It's a shame that it was cut, because it's actually a fun mode!

Funnily enough, there is another code in the official Game Genie manual for Tetris NES giving a 2 player mode (ENEALYNN), but it was that one player controlled the direction the piece moved, and one controlled the orientation.

Offline p2

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Re: Personal list of NES Game Genie codes
« Reply #3 on: May 03, 2017, 09:00:59 pm »
COINAGE you get 1000 gold
QUERRY you get 1000 stones

I hope noone notices I have never even touched a NES >_>
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Anyway war sucks. Just bring us your food instead of missiles  :P ~ DJ Omnimaga (11.10.2016 20:21:48)
if you cant get a jframe set up, draw stuff to it, and receive input, i can only imagine how horrible your game code is _._   ~ c4ooo (14.11.2016 22:44:07)
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Offline aeTIos

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Re: Personal list of NES Game Genie codes
« Reply #4 on: May 04, 2017, 12:03:19 am »
It's not even querry

it's quarry

tsk
ceci n'est pas une signature

Offline JWinslow23

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Re: Personal list of NES Game Genie codes
« Reply #5 on: May 12, 2017, 12:42:24 am »
I decided to put my hacking skills to the test, and fix what I've always wanted to fix within Super Mario Bros: making it so Small Mario powers up to Fire Mario when collecting a Fire Flower (because, oddly enough, he doesn't :-\ ). This took 12 Game Genie codes, though, so instead of putting it in the Game Genie list, I'm attaching it here as an IPS patch.

Patch it to an original Super Mario Bros ROM with a utility such as Lunar IPS. This will fix the issue of powerups not powering you up enough.

Also, @p2, neither of those codes are valid. Yet, oddly, enough, GGENIE is. :P

Offline p2

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Re: Personal list of NES Game Genie codes
« Reply #6 on: May 12, 2017, 12:45:02 am »
@JWinslow23 they were cheats from Age of Empires 1 ;)
also good job on that patch  :thumbsup:
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Anyway war sucks. Just bring us your food instead of missiles  :P ~ DJ Omnimaga (11.10.2016 20:21:48)
if you cant get a jframe set up, draw stuff to it, and receive input, i can only imagine how horrible your game code is _._   ~ c4ooo (14.11.2016 22:44:07)
If they pull a Harambe on me tell my family I love them ~ u/Pwntear37d (AssangeWatch /r/)
make Walrii great again ~ DJ Omnimaga (28.11.2016 23:01:31)
God invented the pc, satan the smartphone I guess ~ p4nix (16.02.2017 22:51:49)

Offline JWinslow23

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Re: Personal list of NES Game Genie codes
« Reply #7 on: May 12, 2017, 12:49:23 am »
Oh, OK then.

And, as it turns out, it's easier to "fix" the powerups in Super Mario Bros 3 (where the same "Small Mario won't power up to the actual powerup" quirk exists for the Super Leaf and the Fire Flower). There are unused flags to see if those powerups are coming out of Big ? Blocks (unused, as in, there are none of those powerups that come out of Big ? Blocks), and if a powerup has come out of one, it powers Mario up to that immediately, regardless of powerup status. "Fixing" that game's powerups, then, comes down to two codes. It's amazing how much unused stuff is in that game.

Offline p2

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Re: Personal list of NES Game Genie codes
« Reply #8 on: May 12, 2017, 08:05:08 am »
above my level, but doesn't ths call for a second patch, enabeling most of that unused code to give the game a new touch? ;)
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Anyway war sucks. Just bring us your food instead of missiles  :P ~ DJ Omnimaga (11.10.2016 20:21:48)
if you cant get a jframe set up, draw stuff to it, and receive input, i can only imagine how horrible your game code is _._   ~ c4ooo (14.11.2016 22:44:07)
If they pull a Harambe on me tell my family I love them ~ u/Pwntear37d (AssangeWatch /r/)
make Walrii great again ~ DJ Omnimaga (28.11.2016 23:01:31)
God invented the pc, satan the smartphone I guess ~ p4nix (16.02.2017 22:51:49)

Offline JWinslow23

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Re: Personal list of NES Game Genie codes
« Reply #9 on: May 12, 2017, 05:57:39 pm »
A lot of patches to unlock hidden or unused features in SMB3 already exist. Here are some examples.

  • The hidden debug mode can be accessed with the Game Genie code KKKZSPIU, or you can activate it the "intended" way with GGUXSKXV+KZUXNKXV+OGUXVKXV by holding A+B on the title screen with Player 2. (I say "intended" because there exists a check within the code to see if Player 2 is holding A+B at the title screen, and the area of the code that executes when the check is successful is NOP'ed out...but there is just enough space there to enable the debug mode.) A patch to accomplish the same, with a hacked-in menu to show the effects of the debug mode better, is downloadable here.
  • There is an unused functionality coded in the game that would toggle Mario being invincible whenever the player presses Select. (A popular guess seems to be that this is a remnant of the debug mode, but I doubt it, since Select changes powerup status in debug mode.) The code is still there and fully functional,
     but the game unconditionally jumps past it. The Game Genie code LPOGVPYX will enable this functionality.
  • There are 15 unused levels still in the game's code that seem to be early versions of final levels, or levels made for testing. In three of these levels, there are some new enemy types, the Green Parabeetle and the Gold Cheep Cheep. One of the levels, a World 6-like ice level, can be accessed with the Game Genie code AOZULT (which simply forces immediate entry in the level tile you're currently standing on), because the START tile contains a pointer to this level. An IPS patch that allows access to all of these levels through a hacked overworld map is downloadable right here.
  • There are MANY bonus games that went unused, but remnants of their code still exist within the game. A good write-up on what exactly these are and what they're supposed to do (and what they do instead) is available at The Cutting Room Floor, and a patch to access these bonus games is downloadable right here (apply to the Japanese ROM).

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Re: Personal list of NES Game Genie codes
« Reply #10 on: May 12, 2017, 07:40:49 pm »
I remember some of the unused worlds from that hacked world map. Aren't some super glitchy and impossible to finish, though?
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Offline JWinslow23

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Re: Personal list of NES Game Genie codes
« Reply #11 on: May 12, 2017, 07:51:54 pm »
Yes, some are incomplete or don't end properly. They are all playable, though.

Offline JWinslow23

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Re: Personal list of NES Game Genie codes
« Reply #12 on: June 10, 2017, 07:24:56 am »
Bump.

In Super Mario Bros, RAM address $03F0 keeps track of the number of blocks hit, but no routine actually uses that value. So, I wanted to turn the coin counter into a counter of this variable. Once I realized it's not that simple for the display itself, I did a whole lot of workarounds that basically make hitting blocks the new equivalent of collecting coins, and collecting coins now do nothing. And yes, hitting 100 blocks gives you a 1-UP now.

Here are the Game Genie codes I used, along with what they actually accomplish separately.

SPASKT+SPYUVLCoins do nothing
AZTAKZ+ULTAVX+VYTASXHitting a block increments the coin counter
IAZLUG+PLZLSKHitting any block gives 50 points (if these codes weren't here, they'd give 200 points)
AAPLKTActually breaking a block doesn't count for an additional 50 points
YGTETYThe coin icon is replaced with a brick icon (because clarity is important)

Apply every one of these to implement the full functionality, or only do the ones you want.

As well, I've made a jump counter using some other Game Genie codes. See how many jumps you average in Super Mario Bros!

SPASKT+SPYUVLCoins do nothing
AEZUPG+AXZLIG+EXZUAG+UUZLYK+VNZLTKJumping increments the coin counter
ZATETNThe coin icon is replaced with the letter A (for "A button")

Offline JWinslow23

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Re: Personal list of NES Game Genie codes
« Reply #13 on: June 13, 2017, 10:41:33 am »
Bump.

Added a lot of new Super Mario Bros codes! Most of these have to do with powerups.

AAZUZTMario can always shoot fireballs, regardless of his powerup
AEGLKGPowerups don't move
AYAPKLHidden 1-Up blocks are always active (as opposed to only being active after collecting a certain number of coins)
AYZIPYAs Fire Mario, press B to kill all enemies on-screen
AYZSVAInstead of becoming Fire Mario when collecting a Fire Flower, you go to the next world after a few seconds
AZPIOEMushrooms behave like 1-Up Mushrooms
ENAISAEnemies are powerups and powerups are enemies
ENZUUKMushrooms don't move
GAGLITMario can't shoot fireballs underwater (because physics)
GIZSVAInstead of becoming Fire Mario when collecting a Fire Flower, you turn into Small Mario, but he can't hit blocks
LAAIKEPowerups, in addition to their power, also give 1-Ups
PEZLEKFire Flowers move like Mushrooms

These codes are very fun to play around with, and AAZUZT+AYZIPY makes you truly unstoppable!

Also, I made a bunch of codes that reveal some hidden items.

LZZENKHidden 1-UP blocks are revealed! The blocks' location is revealed with a small exclamation point
NGZEUKHidden coin blocks are revealed! The blocks' location is revealed with a small letter C in a circle
OZAANG+OZPEUGVines in bricks are revealed! The blocks' location is revealed with a small vine-like shape
PZAEUK+PZPENKStarmen in bricks are revealed! The blocks' location is revealed with a small * icon
TZAENK+TZZAUKCoins in bricks are revealed! The blocks' location is revealed with a small coin icon
VGAAUK+VGPANKPowerups in bricks are revealed! The blocks' location is revealed with a small Mushroom icon
VKPAUKPowerups in ? Blocks are revealed! The blocks' location is revealed with a small Mushroom icon

All of those codes are really helpful, and you might even discover some hidden items you've never seen before!

 


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