Mez's Codes...

[Mezmorize]

Chip 'n Dale Rescue Rangers (U)

Chip 'n Dale Rescue Rangers (U) [NES]

No BGM, Only Sound Effects
EYVATAEI
Note: Pause the game to play music.

Mostly No Sound Effects
ENOEIIEI
Note: One BGM instrument still plays, works best with the above code also enabled.

X-Ray Vision (Items Visible Thru Boxes)
ENKESLEI

X-Ray Vision (alt)
ENSEXLEI

Almost No Enemies
ENXAZAEI
Note: No Zipper either.

No Enemies (alt)
ENVAIAEI

No Enemies (alt2)
ENKAZAEI

No Enemies
ESOAGAEY
Note: No apples or Zipper.

Demo Mode
EIKKKAEY

Throwing Boxes Also Reveals Background
ESKTKZEY

Reverse Carrying Object Animation
EINGXZEY

Walk Up Apples Without Jumping
EYSNAYEI

Enemies Can't Move, And Disappear When You Walk Past
EYUESYEI

Enemies Fly Off The Screen
ENVNNPEI

Invulnerable To Enemies But Not Cactus Plants
EYSNKPEI

Invulnerable To Enemies But Not Cactus Plants (alt)
EYUEAAEI
Note: Not invulnerable when you have the fly powerup.

Enemies Die When They Touch You
EYKELAEI
Note: You take damage.

Enemies Die When They Touch You (You Don't Take Damage)
EIKAGAEY

Infinite Health
ENESZAEI

Don't Get Knocked Back From Taking Damage
ENNSAAEI

Don't Get Knocked Back From Taking Damage (alt)
EYOIGPEI

Thrown Items Go The Opposite Direction
EYEGXTEI

Thrown Items Travel At Ground Level
ENSSAGEI

Getting A Flower Item Makes A 1up Appear
EYUYPGEI

Reverse The Function Of The Left And Right Buttons
ESSGOZEY

Automatically Pick Up Boxes
EIOGOLEY

Less Enemies, No Apples
EIEAAPEY

Walk Up Boxes Without Jumping
ESNVUIEY

Walk Up Boxes Without Jumping (alt)
EIEVXTEY

Walk Up Boxes Without Jumping (alt2)
EIOTKTEY

Walk Thru Walls
EIEVVTEY

Walk Thru Walls (alt)
EIOVETEY

Reverse The Direction Enemies Usually Go
ESEEUYEY
Note: Basically the same as Reverse The Function Of The Left And Right Buttons, but for enemies.

Enemies Can't Jump
ESXEUYEY

----------------------
Starting to wonder if this game had debugging material. One code shows where stuff is while in the select button menu, another makes the objects shown be removed.

Select Button Shows Both Characters In 1P Mode
EYXEVPEI

Select Button Shows Both Characters In 1P Mode (alt)
EYUASPEI

Select Button Shows Both Characters In 1P Mode (alt2)
EIUAUPEY

Select Button Shows Where Objects Are
ENOAUPEI

Select Button Shows Give Up Menu
ENSASPEI

Select Button Instantly Shows Give Up Menu
ESKESPEY

Select Button Instantly Shows Give Up Menu (alt)
ESSAUPEY

Select Button Removes Enemies And Apples
EYOAUZEI

----------------------
More useless codes:
Slow Motion
ENUGZAEI

Slow Motion (alt)
ENXNETEI

Can't Stand On Top Of Apples
ENKYGYEI

Can't Stand On Top Of Apples (alt)
ENSYGYEI

Background Disappears Where You Are, 1ups Come Out
EYETXLEI
Note: Easy to fall to your death.

[Unicode]

Super Mario Bros. 3 (U) (PRG0) [NES]

Remove Almost All Enemies
EIOLVPEY
Note: Also removes the lifts in stage 4 :-( and the fire stuff in the castle :-)

Press B To Remove Anything And Throw It As A Block
ENSUIIEI
Note: You can make your own paths with this, if an obsticle is in your way. - In middle of Stage 1-1 this code made the game get crashed.

Keep Gaining Score Quickly
ENKZTPEI - Nice

Shoot Fireballs Without Firepower
EYKXYZEI
Note: You can shoot fireballs while having a raccoon tail, but can't shoot fireballs as Fire Mario.

Shoot Fireballs Without Firepower (alt)
EIKXLZEY
Note: All powerup Mario's can shoot fireballs except Hammer Mario. - This code was already made by @nolberto82.

Walk Behind Scenery
EISXGYEY - You cannot collect leaf powerups turning into Racoon Mario with this code enabled.

Walk Behind Scenery (alt)
EIOGVYEY - You cannot collect leaf powerups turning into Racoon Mario with this code enabled.

Instantly Beat Stage
ESEEKYEY - You can't beat final castle stage on every world with this code enabled.

Remove Pirahna Plants
EYSXVAEI - Useful

(...)
------------

Super Mario Bros. 3 (U) (PRG0) [NES]

Gain Lots More Points Than Ususal
ENSZKZEI - Nice

Mushroom Powerup Stays Put
EYNXKAEI - Useful

Mario Is Gray
EYKXTIEI - Nice

Mario is Crouched
EYUZPYEI - Nice

-

Swim On Land
EYNZGTEI - You can't stomp enemies with this code.

Swim On Land (alt)
EISZOPEY - Nice

Background Is Black, HUD Spins
EINEUYEY

After Jumping, Fall Very Slowly
EYNLLIEI - Nice. It also make you can walking in air without fallong when walk off a platform.

Walk Backwards
EYXZETEI

Mushroom Powerup Quickly Comes Out The Bottom Of The ? Box
EISZNAEY

Invulnerable To Fireballs
EYOUEAEI - Useful

Invulnerable To Fireballs (alt)
EYOUNAEI - Useful

-

Fireballs Hit You And Do No Damage
EYUUOAEI - Useful

Can't Jump On Enemies
EYSSLZEI

Can't Jump On Enemies (alt)
EYNSZZEI

Jumping On Enemies Automatically Kicks It
ENXIAZEI
Note: Non turtles will turn into a bullet lol - Useful

-

? Boxes Don't Scroll, Coins Don't Spin
EYOENTEI - This code doesn't let to pause game.

? Boxes Don't Scroll, Coins Don't Spin (alt)
ESSKEPEY - If I turn code off the stage totally get screwed.

Move Fast (Right Direction)
EYXZSPEI - Nice

Jog In Place
EYEZNTEI - Nice

Jog In Place (alt)
EYEXUTEI - Nice

Always Face Right Direction
EYOZKTEI

Always Face Right Direction (alt)
EIOXXTEY

Auto Walk
ENXXVLEI

Running Animation In Air
ENOZXPEI

Running Animation In Air (alt)
EIXXUGEY

Look Like You Have Invincibilty Star
ENSKXTEI - Nice

Float Up Automatically
EYVXPAEI
Note: Turn off the code to drop back down.

Mario Slides Around On His Butt
ESXZSTEY

Walk Thru Walls
EINULGEY
Note: Do not jump or you will pass thru the floor. Turn the code on only when needed.

Enter Invisible Doors?
EINUUGEY

Walk Thru Enemies And Powerups
ESEGVPEY

Walk Thru Enemies And Powerups (alt)
EYSIEAEI

Slide Around Super Fast
ENUXSLEI

Open World Castle (Buggy)
ENOLSAEI

Pirahna Plants Shoot 2 Fireballs
ENNZTYEI - Nice

Pirahna Plants Shoot 3 Fireballs
EYEZUAEI - Nice

Pirahna Plants Quickly Go Into The Pipe Without Shooting Any Fireballs
EYEXUAEI - Useful

Pirahna Plants Don't Shoot Fireballs
EYSGYGEI - Useful

Pirahna Plants Don't Shoot Fireballs (alt)
EYULVZEI - Useful

Pirahna Plants Don't Shoot Fireballs (alt2)
EIKKGGEY - Useful

Pirahna Plants Don't Shoot Fireballs (alt3)
EINXXYEY

Pirahna Plants Fireballs Fall Straight Down
EIELKZEY - Nice

-

Can Keep Hitting ? Coin Boxes
EYOUIYEI
Note: Disables the ability to get powerup from ? boxes.

Powerup Comes Out Of The Bottom Of ? Boxes Instead Of Top
ENVXEAEI - Useful

Walk Thru Powerups
ENEXSAEI

Walk Thru Powerups (alt)
ENXSUAEI

Walk Thru Powerups (alt2)
ENSIOAEI

Walk Thru Powerups (alt3)
EYXIKPEI

Mushroom Powerup Is Leaf, Leaf Powerup Is Mushroom
EIELUAEY

Powerups Go Thru Scenery/Walls
ESXKGYEY - This applies on enemies too.

Mushroom Powerup Moves Like In Water
ESSGTTEY - This applies on enemies too.

Powerup Moves On Air
EIVXVPEY - Nice

Powerup Has Low Gravity Fall
EINZVPEY

Faster Animation From Small To Big Mario
ESXZVAEY

Big Mario Walks Without Moving His Legs
ESXUIAEY - Nice

Jumping On Enemies Causes Them To Instantly Disappear
ENNILZEI - Nice

Can't Kick Turtle Shells
EYOGXLEI

Turtle Shells Can't Be Squished
EYXILPEI
Note: Easy 1ups If you keep jumping on them for the points.

Turtle Shells Are Automatically Grabbed, But Can't Be Thrown
EYUGSTEI

Turtle Shells Bounce Off Of ? Blocks
ENUGOGEI

Turtle Shells Do Not Bounce Off Of ? Blocks
ENVKNGEI

Jumping On A Turtle Once Kills It
ESEIZZEY

Jumping On A Turtle Once Kills It (alt)
EIESPLEY

Jumping On A Turtle Once Causes The Shell To Float
EIOKVLEY - Nice

Kicked Turtle Shells Fly Straight
EINKNGEY

Kicking A Turtle Shell Kills It
EIESSGEY

Racoon Tail Leaf Is Green Instead Of Brown
ESKZSLEY - Nice

Racoon Mario Walks Without Moving His Legs
EIKLLAEY - Nice

---

Tail Spin Makes Mario Spin More Times
EYELPPEI

Tail Spin Makes Mario Spin More Times (alt)
ESNUIAEY

Winged Mushroom Enemy Goes Opposite Direction
ENOXNTEI

Winged Mushroom Enemy Can't Fly
ENNXETEI

Winged Mushroom Enemy Can't Fly (alt)
ESKXVTEY

Winged Mushroom Enemy Can't Move Horizontally
EIOZSYEY

If Your Racoon Mario, You Fall Slower After Jumping
ESVXOGEY - Nice. This applies for Tanooki Mario too.

Enemies Don't Rise Into The Air After Hitting Them With Your Tail
ESUSTAEY

Enemies Instantly Disappear After Hitting Them With Your Tail
EIXIZAEY - Nice

-

Visually Remove Wings From Winged Turtles
EIULAIEY

Winged Turtles Only Hop Slightly
ESNUYLEY

Instantly Go To The Map After Falling Into A Pit
ENNSPTEI - Nice

After Filling Meter, Can Keep Flying
ESKXPGEY - Useful

Going Down A Pipe Beats The Stage
EYKLEYEI

Going Down A Pipe Beats The Stage (alt)
ENESLLEI

Instantly Go Inside Of Pipes
EYNIPLEI

Enter First Pipe In The Game To Start On World 2
EYOPVPEI
Note: After the buggy scene, you will get a P-Wing and be on World 2. - After I went to World 2 with this code enabled, when I tried to enter first stage the game crashes.

Enter First Pipe In The Game To Start On World 2 (alt)
EINAULEY - After World 1, this code make you finish every world upon entering its first stage.

Go In A Pipe, Come Out The Other Side (Instead Of Going Inside)
EIXUSYEY - Not compatible with PRG1. When I tried to enter on first stage the game crashes.

Remove Big Green 'Trees'
ESSGXLEY

Get 1up At End Of Stage
ESSUUGEY - Useful

Beat The First Stage To Beat The Whole Game
ESVAOYEY - Not compatible with PRG1. Game crashes when I try to enter first stage.

Press Select To Change Current Powerup Ability
EYXXUTEI - Useful

Most of these works also with PRG1 version of the game. I tested your codes on Super Mario Bros 3 (U) (PRG1) [o1] on FCEUX 2.2.1. Actually only "Go In A Pipe, Come Out The Other Side (Instead Of Going Inside)", "Beat The First Stage To Beat The Whole Game", "Enter First Pipe In The Game To Start On World 2", "Enter First Pipe In The Game To Start On World 2 (alt)" GG codes are incompatible with PRG1 version of Super Mario Bros. 3. All other your GG codes works with both versions of the game.

[Mezmorize]

Thanks for bug reports lol.
And glad someone is using the codes.
When I get around to adding the codes to the database your extra notes will be very helpful, I won't add those.

----------

Edit:
It seems this code for Chip 'n Dale does a little more than I initially realized.

Select Button Shows Where Objects Are
ENOAUPEI

When you leave the menu, it enables X-Ray vision, and freezes the enemies in place.
Definitely seems like debugging material now.

Sometimes it removes the enemies, and when it freezes them instead you can walk thru them without being damaged.

This might be a better way to access the 'Debug Mode': PEOAXOGA

--

Edit:
One last code for the game chip 'n dale.

Invulnerability To Cacti
EYSKNPEI
Note: The top of a cactus plant only come to find out.

It bothered me that I made a code that worked for enemies but not cacti plants.

[Mezmorize]

Chip 'n Dale Rescue Rangers (U) Game Genie

I played a few levels of Chip 'n Dale Rescue Rangers (U), to test out codes I had made. Found a few problem codes and made many more notes. Also made a few more codes, since I noticed the walk over boxes without jumping and walk thru walls codes only worked for the right direction.

So here's the list of codes for it, the above post about the game should be ignored:

No BGM, Only Sound Effects
ENEKTYEI
Note: Pause the game to play the BGM.

————

Almost No Audio
ENOEIIEI
EYVATAEI
Note: Don’t pause the game or a sound effect will be ‘stuck’ playing.

————

X-Ray Vision (Items Visible Thru Boxes)
ENKESLEI

X-Ray Vision (alt)
ENSEXLEI

————

Almost No Enemies
ENXAZAEI
Note: No Zipper either.

No Enemies
ESOAGAEY
Note: No apples or Zipper.

————

Walk Over Apples Without Jumping
EYSNAYEI

————

Walk Over Boxes Without Jumping
ESNVUIEY
Note: Right Direction Only.

Walk Over Boxes Without Jumping (alt)
EIEVXTEY
Note: Right Direction Only.

Walk Over Boxes Without Jumping (alt2)
EIOTKTEY
Note: Right Direction Only.

————

Walk Over Boxes Without Jumping
EIXVOTEY
Note: Left Direction Only.

Walk Over Boxes Without Jumping (alt)
EIUVXTEY
Note: Left Direction Only.

Walk Over Boxes Without Jumping (alt2)
EIKTKTEY
Note: Left Direction Only.

————

Bulldogs Cant Move
EYUESYEI

————

Enemies Fly Off The Screen
ENVNNPEI
Note: Bosses wont fly off the screen, but they do get killed.
Note 2: Works with or without the fly powerup, and does not constantly play the Zipper tune.

————

Invulnerable To Enemies And Powerlines But Not Cactus Plants
EYSNKPEI
Note: Cant pick up items.

————

Invulnerable To Tops Of Cacti Plants
EYSKNPEI

————

Enemies Die When They Touch You
EYKELAEI
Note: You take damage.

Enemies Die When They Touch You (You Don’t Take Damage)
EIKAGAEY
Note: Be careful at the boss with this code, it’s better to use “Enemies Fly Off The Screen” code.

————

Infinite Health
ENESZAEI

Don’t Get Knocked Back From Taking Damage
ENNSAAEI

————

Thrown Items Go The Opposite Direction
EYEGXTEI

————

Thrown Items Travel At Ground Level
ENSSAGEI

————

Getting A Flower Item Makes A 1up Appear
EYUYPGEI

————

Reverse The Function Of The Left And Right Buttons (Players)
ESSGOZEY

Reverse The Function Of The Left And Right Buttons (Enemies)
ESEEUYEY
Note: This makes enemies run away from you instead of towards you.

————

Automatically Pick Up Boxes
EIOGOLEY

————

Walk Thru Walls
EIEVVTEY
Note: Right direction.

Walk Thru Walls (alt)
EIOVETEY
Note: Right direction.

Walk Thru Walls
EIUVVTEY
Note: Left direction.

Walk Thru Walls (alt)
EIKVETEY
Note: Left direction.

————

Bulldogs Enemies Can’t Jump Over Obstacles
ESXEUYEY

————

Select Button Shows Give Up Menu
ENSASPEI

Select Button Removes Enemies And Apples
EYOAUZEI

Select Button Shows Debug Mode
PEOAXOGA
Note: The select button menu will now show where objects are, even invisible ones. The menu will use Japanese characters to show where enemies are too. When you leave the menu, enemies and apples will be removed from the screen, or either it will freeze enemies and allow you to walk thru them unharmed. And finally, leaving the menu sometimes enables x-ray vision (see powerups that are invisible or currently hidden inside boxes).

Select Button Instantly Shows Give Up Menu
ESKESPEY

Select Button Instantly Shows Give Up Menu (alt)
ESSAUPEY

————

The more useless codes:

Slow Motion
ENUGZAEI

Slow Motion (alt)
ENXNETEI

Can’t Stand On Top Of Apples
ENKYGYEI

Can’t Stand On Top Of Apples (alt)
ENSYGYEI

Background Disappears Where You Are, 1ups Come Out
EYETXLEI
Note: Easy to fall to your death.

Select Button Shows Both Characters In 1P Mode
EYXEVPEI

Select Button Shows Both Characters In 1P Mode (alt)
EYUASPEI

Select Button Shows Both Characters In 1P Mode (alt2)
EIUAUPEY

Edit:
Here's stuff for the E and J versions.

Chip 'n Dale Rescue Rangers (E) [!]

Select Button Shows Debug Mode
ENOAUPEI

Select Button Removes Enemies And Apples
EYOAUZEI

Chip to Dale no Daisakusen (J) [!]

Select Button Shows Debug Mode
ENOAUPEI

Select Button Removes Enemies And Apples
EYOAUZEI

[Mezmorize]

Always thought Teenage Mutant Ninja Turtles for the NES was way too damn hard, especially as a kid. Mostly because the relentless enemies. Here's a couple codes for the USA release:

Enemies And Projectiles Are Frozen In Place
EIEVEYEY

No Enemies (Or Items)
ESSVVTEY

I tested them both up until the damn dam. Much to my surprise you don't get stuck with No Enemies code enabled. I originally thought it wouldn't be a good idea since you need to kill certain enemies to progress further.

Edit:
More codes for Teenage Mutant Ninja Turtles (U) [NES]:

Automatically Attack As You Walk
EIUPXIEY

Automatically Attack When Jumping/Falling
ESKPEYEY

Automatically Attack When An Enemy Runs Into You
ESUZLAEY

Walk Faster
EIVXPYEY

Mount Ladders Automatically
ENXPVYEI

Mount Ladders Automatically (alt)
ESXPXYEY

Walk Without Moving Your Legs
EIUXZTEY

Walk Without Moving Your Legs (alt)
EIKZZTEY

Walk Thru Walls (Right Direction)
ESEPNIEY

Walk Thru Walls (Left Direction)
ESUONIEY

Invulnerability
ENOPLYEI
Note: Turn off to enter the van.

Invulnerability (alt)
ESOOUAEY

Infinite Health
ESSOEAEY

Enemies Die When They Touch You
EIEPVPEY
Note: You take damage.

Projectile Throwing Enemies Don't Crouch To Become Untouchable
ENEPPLEI

Infinite Time Underwater
EISZEPEY

Remove Time Limit Underwater
EIXAYPEY

Invincible To Electric Seaweed
ESKZAIEY

[Mezmorize]

Chip 'n Dale Rescue Rangers 2 (U) [NES]

Walk On Air
EOVXVZEL

Walk Thru Walls
EYUKSAEI

Walk Thru Walls (alt)
EIUKEAEY

Walk Thru Walls (alt2)
EIKGXAEY

Walk Thru Walls (alt3)
ESEGXAEY

[Mezmorize]

Toxic Crusaders (U) [NES]

Just watched the Angry Video Game Nerd's newest video of Toxic Crusaders, which brought back a lot of (bad) memories.
This was by far the shittiest game I owned for the NES as a kid.

Here's the video, check it out:

Even though it sucked so bad, I still decided to make some codes for it lol.

Toxic Crusaders (U) [NES]

Enemies Automatically Die
ENOEOAEI

Enemies Are Frozen In Place
EYXSVAEI

Invulnerability To Enemies
ENUSVZEI

Automatically Attack While Jumping
ENULZYEI

Invincibility
EYOINTEI

Lose Health Without Losing Mop
EYXLUAEI

Throw Projectiles? (Need To Have Mop)
ESNVGGEY

[OldSchoolGamer]

Is it just me or was it also weird for yous to hear such an old man say things such as "cum rags".

[Mezmorize]

LOL yea, he said a lot of crazy shit, definitely has a strange personality.
I bet he was on some hard core drugs back when that was made =P

Turns out the NES version has a Debug Mode:
EESNEYAA (by CaH4e3)

[Mezmorize]

Addams Family, The (U) [!].nes

Walk On Air
ENOAEAEI

-----------------------

Addams Family, The - Pugsley's Scavenger Hunt (U) [!].nes
Create Platforms To Land On As You Jump
EYVYYAEI

Walk On Air
ENXYGPEI

-----------------------

Alfred Chicken (U) [!].nes
Walk On Air
ESVTZGEY

-----------------------

Alien 3 (U) [!].nes
Walk Thru Walls
ALVUYAAP

Stay In The Air After Jumping
EPNSTIEL
Note: Hold the jump button to drop back down.

-----------------------

Back to the Future Part II & III (U) [!].nes
Full Inventory
EYSUNAEI

-----------------------

Bashi Bazook - Morphoid Masher (U) (Prototype).nes
Some Enemies Automatically Die
EIOUZPEY

Create Platforms To Walk On As You Walk
EIKEALEY

-----------------------

Batman (U) [!].nes
Enemies Disappear When They Touch You
ENVPVPEI

Can't Fall Off Ledges (Right Direction)
ESEOOLEY

Invulnerability
ESVOSLEY

Invulnerability (alt)
APEPNZAL

Slow Decent When Falling
AUOPLIAP

-----------------------

Kinda getting bored with the system, I would be open to taking game request.
Game request more so than code request, I'll see what kind of codes I can come up with.

[Tony H]

I know what you mean when you say "Game request more so than code request". Code request's are fine, but it's more fun to just see what different types of codes you can come up with for a certain game.

I like your "Create platforms" codes above.

[Mezmorize]

Yea I figure with my problem with finishing 'projects' that I start, I may never get to a game that someone might want to see some new codes for. And with using trace logs to make codes, you can come up with some unusual codes.

The create platforms codes are a good example of making a code that I wasn't specifically trying to make.

A good example of me not finishing stuff I start is the Regional Lockout Bypass codes for Genesis.
I had very few left to do and still haven't finished >.<

Here's the remaining games/notes I had if you want to get them done, I never did check if a code had already been made for them (except with your universal codes, which did not work for these):

NBA Hang Time (E) [!].bin [Don't Work For USA or Japan] [FF2A44:6000]

*NHL 96 Elitserien (E).bin [Don't Work For USA or Japan] [MC 1DAD44:6002]
*Nigel Mansell's World Championship (E).bin [000328:4E71] [Don't Work For USA or Japan] [MC]
*Ottifants, The (E) (M5) [!].bin [Don't Work For USA or Japan]
*Pebble Beach Golf Links (E).bin [Don't Work For USA or Japan]
*Pocahontas (E) [!].bin [Don't Work For USA or Japan]
*Punisher, The (E).bin [Don't Work For USA or Japan]
*Ranger-X (E) [!].bin [Don't Work For USA or Japan]
*Robocop Versus The Terminator (E).bin [Don't Work For USA or Japan]
*Samurai Shodown (E) [c][!].bin [Don't Work For USA or Japan]
*Saturday Night Slam Masters (E).bin [Don't Work For USA or Japan]
*Sega Sports 1 (Wimbledon, Ult.Soccer, Super Monaco) (E) [!].bin [Don't Work For USA or Japan]
*Shin Changsegi - Ragnacenty (K) [!].bin [Don't Work For USA]
*Skeleton Krew (E).bin [Don't Work For USA or Japan]
*Smurfs, The (E) (M5) [!].bin [Don't Work For USA or Japan]
*Sonic Classics (Compilation) (E) (REV00) [!].bin [Don't Work For USA or Japan]
*Speed Ball 2 - Brutal Deluxe (E) [!].bin [Don't Work For USA or Japan]
*Spirou (E) [!].bin [Don't Work For USA or Japan]
*Streets of Rage 3 (E) (Apr 1994) [!].bin [Don't Work For USA or Japan]
*Streets of Rage 3 (E) (May 1994) [!].bin [Don't Work For USA]
*Striker (E) (M5) [!].bin [Don't Work For USA or Japan]
*Tintin Au Tibet (E) (M6) [!].bin [Don't Work For USA or Japan]
*Toy Story (E) [!].bin [Don't Work For USA or Japan]
*Ultimate Soccer (E) [!].bin [Don't Work For USA or Japan]
*Wimbledon Championship Tennis (E) [!].bin [Don't Work For USA or Japan]
*Worms (E) (Prototype) [c][!].bin [Don't Work For Japan]

[Mezmorize]

NES Game Genie Codes

Beetlejuice (U) [!].nes
Invulnerability
EYKIUZEI

Invincibility
ENUIGTEI

-----------------------

Bionic Commando (U) [!].nes
Walk On Air
ENNZUIEI
Note: Must use the grappling hook to get down, or turn off the code.

-----------------------

Blaster Master (U) [!].nes
Invulnerability To Enemies
ESVSITEY

Some Enemies Automatically Die
EISZSAEY

-----------------------

Bonk's Adventure (U) [!].nes
Slow Decent From Walking Off Ledges
ESUOUZEY

Walk Faster (Left Direction)
EPXENYEL

-----------------------

Bram Stoker's Dracula (U) [!].nes
Slow Decent From Walking Off Ledges
EIKLYYEY

Automatically Attack When Jumping/Falling
EUXUTYEP

Less Enemies
EUUVNLEP

Float After Jumping
EUXUEIEP
Note: Press Down to fall back down.

Float After Jumping (alt)
EOEUVIEL

Some Enemies Can't Move
EOEGETEL

-----------------------

Bugs Bunny Birthday Blowout, The (U) [!].nes
Slow Decent After Jumping
ENXENGEI

-----------------------

[Mezmorize]

I was having problems with a code since there is no BRA instruction on the NES.
Did a quick search and this page told a helpful tidbit:
http://www.atarimax.com/jindroush.atari.org/aopc.html

I was able to make the Walk Thru Walls code always work instead of just reversing when it would normally take effect.
Since I was replacing a BNE with BEQ, you could walk thru walls when you shouldn't be able to, but with things you normally should be able to walk thru the character would stop. I used $70 which is BVS - Branch if Overflow Set and it seems to work great.

Castlevania II - Simon's Quest (U) [!].nes
Walk Thru Walls
ANVAZLEI

Walk On Air
ESSEZTEY
Was a problem with this one. Was fixed with a value of $70 once again :-)

Walk On Air
ANSEZTEY

Automatically Attack While Jumping/Falling
ESSAOPEY

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Captain America and The Avengers (U) [!].nes
Walk On Air
EINXXYEY

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Castlevania (U) (PRG0) [!].nes
Enemies Die When They Touch You, And You Take No Damage
ENNTZTEI

Don't Get Knocked Back After Taking Damage
ENKPTTEI

Walk On Air After Jumping
ENUONTEI
Note: Must turn off the code to drop back down.

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[Mezmorize]

X-Men Character Modifier For Fusion v3.64 (Game Gear)

Here's somewhat of a save-state editor for the Game Gear version of X-Men.
It's for a character modifier only.

X-Men Character Modifier For Fusion v3.64 (Game Gear).zip

I made the code literally years ago but was never able to share a working code.
I could use Cheat Engine to easily use the code since I could just write the value once without locking the value, but when converted to a PAR code it would not work properly.

Can't make a working Game Genie code with my limited skills, but at least now I am able to share the code in some form.
Normally when starting a new game you can only play as Wolverine and Cyclops.

With this you can change characters at anytime between those 2 characters as well as:
Storm, Rogue, Psylocke, Nightcrawler and Iceman.