Super Mario Bros 3 - Enemy Modification Game Genie Codes (USA)
This page contains the Game Genie codes I have for Super Mario Bros 3 (USA), a game for the original NES (Nintendo Entertainment System). If you're playing with an emulator you'll typically be able to put these codes into the program directly through a built in option. Any of you who are old school and playing on a physical console, you'll have to purchase a physical Game Genie cheat device to use these codes.
If you don't see the code you want on this page, I recommend you return to my Super Mario Bros 3 Guides Index and choose a different section.
1-Ups from Most Shell Attacks: ALKAESVN
All Ice Blocks Have a Tiny Goomba Hidden Inside: GEOZLZLA
Bowser does not shoot fireballs: ATXUXUSZ
Bowser does not shoot fireballs (has animation): ATVLUUOZ
Can Stomp Most Enemies: AAVIGZAZ
You can kill Piranha Plants, Podobos, Fire Discs, Thwomps and probably more. Does not affect your ability to collect various shells
Can Stomp Most Enemies (Alt): SZVSYXGK
Can't Jump On Enemies (alt): EYNSZZEI
Can't Kick Turtle Shells: EYOGXLEI
Dry Bones Falls When You Touch It: AYSUTYEP
Dry Bones Never Falls: ZAVLPNPA
Enemy Numbers are Multiplied: AYNUNAAL
They all spawn from the same spot too, except the game to slow down some from too many enemies loaded.
If the end goal card isn't there for you leave the area, kill some enemies then return.
Hold Shell Forever: SXUGUOVS
Koopas never come out of their shell once you stomp them.
Jumping On A Turtle Once Causes The Shell To Float: EIOKVLEY
Jumping On A Turtle Once Kills It: ESEIZZEY
Jumping On A Turtle Once Kills It (alt): EIESPLEY
Jumping On Enemies Automatically Kicks It: ENXIAZEI
Non-turtles turn into bullets
Kicked Shells Go Through Objects: SZVIAPSP
Kicked Turtle Shells Fly Straight: EINKNGEY
Kicking A Turtle Shell Kills It: EIESSGEY
Koopas Cannot Be Totally Stomped: APXILPEI
They will never leave their shells
Koopas Never Get Back Up: AIXILPEI
You can hold their shells indefinitely too, works for all shelled enemies
Many Enemies Can't Shoot: EYSGYGEI
Most Enemies Can't Attack: PGTIPS
Need to shoot 12 fireballs instead of 6 on bosses: GXNZVPIX
No Enemies: GPPIUE
Pirahna Plants Don't Shoot Fireballs: EYSGYGEI
Pirahna Plants Don't Shoot Fireballs (alt): EYULVZEI
Pirahna Plants Don't Shoot Fireballs (alt2): EIKKGGEY
Pirahna Plants Don't Shoot Fireballs (alt3): EINXXYEY
Pirahna Plants Fireballs Fall Straight Down: EIELKZEY
Pirahna Plants Quickly Go Into The Pipe Without Shooting Any Fireballs: EYEXUAEI
Pirahna Plants Shoot 2 Fireballs: ENNZTYEI
Pirahna Plants Shoot 3 Fireballs: EYEZUAEI
Piranha Plant Fireballs Always Travel Upward: EANXEELE
Piranha Plants Shoot Bouncing Fireballs: GEXZKAIE
Piranha Plants Shoot More Fireballs: ENNZTYEI
Regular Bullet Bill Generators Produce 1-UP Mushrooms: LANUUNAN
Regular Bullet Bill Generators Produce Goombas: ZYNUUNAY
Regular Bullet Bill Generators Produce Invincibility Stars: GANUUNAN
Remove Almost All Enemies: EIOLVPEY
Also removes the lifts in Stage 4 and fire hazards in castle
Remove Pirahna Plants: EYSXVAEI
Slow Enemies x1: XVNSSKZE
Some Enemies Hop!: ESNLGLEY
Turns Flying Koopas Into Boomerang Bros. When Stomped: XEOZGEGT
Turns Flying Koopas Into Fire Bros. When Stomped: NEOZGEGT
Turns Flying Koopas Into Hammer Bros. When Stomped: OEOZGEGT
Turns Flying Koopas Into Sledge Bros. When Stomped: VEOZGEGT
Winged Mushroom Enemy Can't Fly: ENNXETEI
Winged Mushroom Enemy Can't Fly (alt): ESKXVTEY
Winged Mushroom Enemy Can't Move Horizontally: EIOZSYEY
Winged Mushroom Enemy Goes Opposite Direction: ENOXNTEI
Winged Turtles Only Hop Slightly: ESNUYLEY
Can Kick Most Enemies
Don't hold B while doing this or you'll get hurt, just walk into the enemy
AYUITLEI
EYSGXIEL
Dry Bones Does Not Stay Put After Being Stomped
SZVLGNOZ
SLVLIYAE
Slow Enemies x2
XVNSSKZE
XVNSVKZE
All Levels and Areas Have Jumping Fish
OXOUUUSX
PEOUKLTT
XVOUSLIE
Koopa Kids Are Harder To Beat
EXKXNYKL
ZESZENYY
GEEUZPLA
Slow Enemies x3
XVNSSKZE
XVNSVKZE
XVNSNKZE
Can Kick and Grab Most Enemies
Walk into an enemy to kick them, hold B while walking into them to grab them.
ELXILPEI
EYSGXIEL
AYUITLEI
APVKOLEY
Slow Enemies x4
XVNSSKZE
XVNSVKZE
XVNSNKZE
XTEIESZE
Can Kick, Grab and Stomp Most Enemies
Same behavior as "Can Kick Most Enemies," but you may now press B to take hold of most common enemies. Release it, and it will act like a Koopa shell
Press B while killing bosses
ELXILPEI
EYSGXIEL
AYUITLEI
AAVIGZAZ
APVKOLEY