NES Game Genie codes by Cyperium

[Cyperium]

Mega Man 2 (USA):

ASEAGIEI
LEOEYITA
XVVEIIAV
IEVAYITA
LAKEGYTA
LAUSTLZA - Multijump and minimal pushback from getting hit. This is a updated version of the code that didn't work correctly (on page 2). nolberto82 still has the better version as it uses only three codes, this alternative is mainly created to expose game mechanics. Two codes added as well to cover for taking hit and jumping from a ladder. You won't be able to multijump if you take a energy cell while in the air (weapon or health). In water Mega Man jumps very high unfortunately when using this code.

GEUETZLA
OXXEVLSV - Wrap to the top when you fall down bottomless pit, you also wrap to the bottom if you jump over the top of the screen. Normal screen transitions work normally (jumping down and climbing down).

AAVPTZGA - Freeze enemies and bosses. Uses the Flash stopper routine, but I seem to remember that bosses weren't affected by that, when that routine is always enabled (as with this code) then it seems to stop also bosses, only tested on Wood Man's stage though so the effect may differ with other bosses. The Mech Dragon on Dr. Wily's stage doesn't appear when this code is used, will try to fix that, it does appear if you disable the code (thank you Unicode for mentioning it to me).


SZVPLZSX
LAVPGXXX
PAVPIZEY
XTVPTZGE
ZIVOAZGA - Freeze enemies and bosses, don't freeze Mecha Dragon (enables the screen to scroll and the Mecha Dragon to appear). Works by enabling the flash stopper routine everywhere but at the Mecha Dragon. At the second stage other problems will occur though as the boss at that stage freezes when it is indestructable, another workaround is needed for that (like a code to shoot enemies instead of the bullets bouncing off), I'm working on that now. I'll have this code as a alternative version in the database, as users may still want to use the shorter version prior to the Mech Dragon boss. I tried to find a code that just stops the enemies in their movement routine, but it turns out that Megaman uses the same routine and it just didn't work


AAVTIVPZ
AASVZTGL
AEETXPZA
OZNVYTSV
AAEZYTIL - Destroy indestructable objects/enemies/bosses. All enemies are destroyed with one shot. Only works with regular weapon. Bosses still requires multiple shots to be killed even if their defense is up. If you destroy the enemyblocks of Boss #2 in Dr.Wily's castle before they are "put together" it won't decrease health, so make sure you shoot them when they have assembled. Or you can use AASOLUGA so that the boss health doesn't need to be zero for it to be destroyed, you still have to be careful to only shoot when it is assembled but increases the odds

The above code alone doesn't solve the freeze enemies problem with the second Dr.Wily boss though as health isn't decreased for the boss when destroying the enemyblocks while they are indestructable.


ZASOZGPE
XUEOAKVV
ZLNOPGSL - Boss #2 of Dr.Wily's castle behaves normally with freeze enemy code enabled. Have tested and the game can now be completed with freeze enemy code enabled (the one that doesn't freeze Mecha Dragon), though you will need jump in mid-air and walk through walls codes as well since the platforms that should move you around the pre-defined path doesn't move in stage 4 of Dr.Wily's castle.



The freeze enemies code has been updated again today (2020-02-20):
AAVPTZGA
AASPGGPA
AASOZGPA - Freeze enemies and bosses (not all bosses, just some), enables the screen to scroll and Mecha Dragon to appear, the second boss of Dr.Wily's castle isn't frozen so that it can be defeated. Since this code is only three codes long it will replace the existing one in the database. Mecha Dragon will be invisible (due to the frozen state) but you can shoot into the air where it used to be and it will be instantly defeated (as the health is zero).


RAM:

Megaman's state:
[COLOR=white]002C:[/COLOR]
[COLOR=white]00:[/COLOR] Zipping down/Killed.
[COLOR=white]01:[/COLOR] Is set when falling down a pit, but also when getting hit.
[COLOR=white]02:[/COLOR] Get hit, [COLOR=white]01[/COLOR] is set afterwards.
[COLOR=white]03:[/COLOR] Standing.
[COLOR=white]04:[/COLOR] Begin to walk.
[COLOR=white]05:[/COLOR] Walk.
[COLOR=white]06:[/COLOR] Fall.
[COLOR=white]07:[/COLOR] Set after you land while moving.
[COLOR=white]08:[/COLOR] Land while moving, [COLOR=white]07[/COLOR] is set afterwards.
[COLOR=white]09:[/COLOR] On ladder.
[COLOR=white]0A: [/COLOR]Climb
[COLOR=white]0B: [/COLOR]Finish stage (zip).

[Cyperium]

8-Eyes (USA):

AEVLPLYE
YENUGLTA - Can select The House of Ruth.

PESUALEA
ZENLPLAG - Press left/right to change selection instead of B/A.

Those are request codes, I'll probably create more code for this game later.

[Cyperium]

Final Fantasy (USA):

AANGXXEY - Walk through walls in towns and dungeons (request).

[Unicode]

Mega Man 2 (USA):

(...).

AAVPTZGA - Freeze enemies and bosses. Uses the Flash stopper routine, but I seem to remember that bosses weren't affected by that, when that routine is always enabled (as with this code) then it seems to stop also bosses, only tested on Wood Man's stage though so the effect may differ with other bosses.

(...)

Cyperium, I like your "Freeze enemies and bosses" code for Mega Man 2, however, I found this in the first Dr. Willy Stage, it prevents the first Dr. Willy's boss (Mech Dragon) where the stage starts scrolling from appearing and do complete this stage required disabling this code to make screen to start scroll and the Mech Dragon boss do appear so it do can be beaten. Can you fix this?

[Cyperium]

Cyperium, I like your "Freeze enemies and bosses" code for Mega Man 2, however, I found this in the first Dr. Willy Stage, it prevents the first Dr. Willy's boss (Mech Dragon) where the stage starts scrolling from appearing and do complete this stage required disabling this code to make screen to start scroll and the Mech Dragon boss do appear so it do can be beaten. Can you fix this?

I'll try to fix it, but can't promise anything, this might also increase the number of codes. I did notice that some of the bigger enemies (like the big dog in Wood Man's stage) didn't appear. For now, until I get it fixed (if I can) I'll update the description to mention the flaw thank you very much for testing the code!


The Mega Man 2 post has been updated to fix the issues, codes have been added to the database.

[Cyperium]

Mega Man 3 (USA):

AEKEZPZA
APOEIPEY
APVEAPEI - Destroy any object/enemy/boss with one shot (normal weapon), be careful not to destroy the wrong things, when bosses are defeated by shooting enemies, shoot the enemies not the boss!

SXXVNZSA
XVXSALAV - Walk/slide through walls. The code in the database (by Dybbles) didn't allow you to slide through walls. This code works differently though which allows you to do that. Just as with Dybbles code enemies also walk through walls. If you don't care about being able to slide through walls only the first code is needed (then you can't slide while within a wall but you can slide through it from the outside).

AENYITAP - Jump through roof. Enemies also jump through roof.

[Cyperium]

Mega Man 4 (USA):

VEKEYASZ - Invincible against enemies/spikes, you become invisible while charging though.

SXVSTGSA - Walk through walls, enemies also walk through walls.

APXYLZEY - Jump through roof, enemies also jump through roof.

AASAGOIA
AASELPTA
AAUAGLIA - Destroy any enemy/boss with one shot.

[Cyperium]

Akumajou Dracula (Japan) (v1.0) (b):

AIUPKPEI - Collect enemies as hearts (don't collect the boss as a heart or the boss won't be defeated).

ATUOOOOG - Invincible, crushers and falling down a pit can still kill you. (request)

SZNAIPAX - Disable crushers.

OZUOOOOK
LPUOXPZE - Enemies run away after they hit you.

SZOZKOOZ
PZOZVPEX
EAOZNPPA
EIOXEPSA
SYOZSPAA
EAOXOOIU
GVUXOALK
GEUXXAPA
AIXXOGEP
KTEXGVVV - Jump in mid-air. (request)

[Cyperium]

Teenage Mutant Ninja Turtles (Japan):

AEUTEZZA - 1 hit kills enemies and bosses.

[Cyperium]

Spelunker 2 - Yuusha heno Chousen (Japan):

AASONILA
SXOUIOSE - Invincible.

AEXKZTPA - View ending at start of level.

ZEUTLVPA - Don't die from falling down pit.

AANSSSAP - Can fall into pit infinitely many times.

AEXLNONY - View ending at start of level.

SZUUUZSA - Infinite blue keys (you still need a key).

SZVLGGSA - Infinite pink keys (you still need a key).

[Cyperium]

Mega Man 5 (USA):

SZNGGTSA - Walk/slide through walls (enemies also walk through walls).

AAVTSAAP - Jump through roof (enemies also jump through roof).

AENATEGP - Hit even if enemy defense is up (bullets doesn't bounce off). If you encounter an enemy that isn't meant to be defeated then you might have to use nolberto82's one hit kill code (AEUAZOIZ).

[Cyperium]

Mega Man 6 (USA):

OZNAVYSX - Invincible against enemies.

ATVAXTXZ - Never blow up (unless you fall into pit), go through spikes, survive crushing.

OXNENVOK
ALEAOYEP - Wrap to top if you fall down a pit.

SXVASVSZ
AKVAVTST
PXVANTLE
ENVEOTLA
GEVEXVGG
OXVEUTZV
SEVESTSZ
NNVEKVVE
EOVENTEY
SXVEPVOZ
XVVEVTVO
XVUEKTVO
XVVEZTAE
AEVEETAO
OZNAVYSX - Press UP to float up, if you press UP while jumping you will go up very fast, use ATVAXTXZ to prevent getting crushed against a ceiling (will also make you invincible against spikes).

[Cyperium]

Balloon Fight (USA):

ATKKOUOZ - Invincible against sparks.

AAXKZTGA - Fish doesn't appear.

EVVTEXEN - Wrap to the top when you fall into water, if you die you will continually wrap to the top (game is basically softlocked).

AASVSYGP - Enemies can't destroy your balloons.

SZEVVYAX
SXVTOTAX - Enemies doesn't affect your movement, can still pop your balloons, use with AASVSYGP to be invincible against enemies.

SZSTUNGK - Auto-defeat all enemies at the start of the level. If you load a savestate so that enemies have already spawned then you need to go to their level and all enemies at that level will be defeated.

ASSVSIAP - Fly through ceiling, enemies also.

ATEVETAZ - Fly through walls, enemies also.

[Cyperium]

Legend of Zelda, The (USA):

AVXUZLAZ - Invincible (ROM version of nolberto82's RAM code), the code has to be enabled when reset/power on for it to work.

EIKLIIAP
AESALZAZ - Enables screen transition to "minus world" (you need walk through walls code), similar to Retrocheat's code but the second code is slightly different. Adding it as an alternative in the database.

SZSVEGAX - Enemies and other sprites gives off traces.

YAUVNGPA
GIKTOGET - Press SELECT to open doors (not locked ones), doesn't always work though, have to investigate why. Not adding to database until I understand it better. Pause will not work (SELECT pause that is).

SXKUPKSU
KNKULGGA - One hit kills, ROM to RAM code which means that you need to have it enabled while powering on or resetting. RAM code is 7C5B:F4 + 7C59:AD. Thanks to Phil The Hammer for enemy health addresses.

AAXAUNZP
AAUAONGA - Reveal bush secrets automatically. The secret melody will play and the staircase will appear.

TAXAUNZO - Reveal bush secrets automatically. Updated code so that only one code is needed. The code in the database has been updated to this code instead.

AAEANYIA
AAEAENGA - Reveal wall secrets automatically. Doesn't apply to dungeons.

YAEAENGA - Reveal wall secrets automatically (doesn't apply to dungeons). Updated code so that only one code is needed. The code in the database has been updated to this code instead.

ZZSEVTZL - Reveal grave and heavy stone secrets automatically (for heavy stone secrets you need the power bracelet, or AASAUVIL which let's you move heavy stones without power bracelet).

AASAUVIL - Move heavy stones without power bracelet.

AASOPZST - Don't have to bomb walls to get through them, they need to be bombable walls though. Doesn't apply to overworld.

AEUAOZAP - Shut doors open even though condition for them to open isn't met. This does not apply to locked doors.

LEEOAXGA - Locked doors can be opened even if you have no key. If you have keys then they will decrease as usual.

OZOXLSPK
SXSAALSA
SAOXIIIZ - All paths opened in dungeons (bombed walls/doors). Walls that normally have no opening or door will have a fake opening anyway which you can't go through. Thanks to Helder for RAM address and value!


Some invincibility codes not added to the database (they don't really add anything):
KEONEVSU - Invincible, enemies flash.

XXXTUSEP - Invincible, you flash.

ENNNLXVP - Invincible, you are red/white.






RAM:

[COLOR=white]0602[/COLOR] is set to [COLOR=white]04[/COLOR] when playing the secret melody. This can be used to create codes to reveal secrets. Often this is set in a small routine at [COLOR=white]9081[/COLOR].

[Cyperium]

Gremlins 2 - The New Batch (USA):

AVXAZSOZ - Walk through walls.

ATVIVSOZ - Invincible against enemies, unlike VisitntX code you can ride on the platforms over the pits.

AAEELGLA - Surfaces doesn't harm you, treadmills doesn't move you. Same code as the one I made for the european version.

UGKGEAPP
XGKGOEEK - View ending at the start of the level.

XGNAXAVE
GAVENAZA - View ending at the start of the game.

XKKENIVE - View ending a bit into the intro before the first level. Don't press start to skip the intro.

GESGAYLA - View ending at the start of the game. Updated code replaces the one in the database since it has less codes.

ATUEPLVT - Jump to enter explore mode, in this "mode" you will be able to walk through walls and be unaffected by any surface, if you press B you will hover above ground and thus be invincible to all enemies and bosses. Press B again to exit explore mode.