Super Mario Bros + Duck Hunt - Misc Game Genie Codes (USA)
This page contains the Game Genie codes I have for Super Mario Bros + Duck Hunt (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.
When it comes to emulation for the NES you have 3 good options to choose from. You can do RetroArch, Nestopia or MesenCE, follow the links provided to learn more about how to use the codes you find on this page on the Emulator of your choice. If you don't see the code you want on this page, I recommend you return to my Super Mario Bros + Duck Hunt Guides Index and choose a different section.
Note: Many of the codes on this page also work for Super Mario Bros + Duck Hunt + World Class Track Meet.
Always Walk Slowly: EIULPIEY
Always Walk Slowly (Right Direction): EYVUAIEI
Jump Like You're Swimming: ENNVSYEI
Jump Like Your Crouching: EYEYGAEI
Swim On Land: EYSPAPEI
Walk On Air (After Jumping): EYESNIEI
Turn this code off to drop back down
Walk On Air After Jumping (Alt): ESXIUYEY
Turn this code off to drop back down
Walk Thru Enemies: EYOIVPEI
Walk Thru Enemies (alt): EYXSNPEI
Black Background Is Blue Sky: EYOEGTEI
Blocks Turn Invisible After Hitting Them: ESVLETEY
Breakable Blocks Are Clouds: EIUPKZEY
Clouds, Trees, Fences In Underground Stages; Clear Skys On Stages That Normally Have Clouds, Trees, Fences: EIOPPGEY
The Ground Is Clouds: ESEPGGEY
Fireworks 1 Code: D304?06:??
Replaces the Fireworks that normally trigger at 6
Fireworks 2 Code: D2FE:03:??
Replaces the Fireworks that normally trigger at 3
Fireworks 3 Code: D2F8?01:??
Replaces the Fireworks that normally trigger at 1
1-up Blocks Always Available on (#-1 Worlds) : SZEOEUSE
Always Walkbackwards: OXEYZZSX
Mario And Enemies Wont Turn Around: OUEZZSX
Air Bubbles Come Out Of Mario: EYNLPTEI
All castles are missing, but game still plays normally: STPONE
Big mario turns little when he jumps: VGANPA
Can Continue Jumping On A Squished Enemy (alt): ESUISAEY
Can Continue Jumping On A Squished Enemy (Easy 1ups): ESXSOAEY
Change Stage Layout: ENVOLIEI
Demo Mode: PENEGZAA
Press Start on Title Screen to control the Demo Player
Disable Audio: ENSYLZEI
Enemies Are Toad: ENUTKAEI
Enemies can go thru pipes, walls, and blocks! Mario as usual can't go thru pipes, walls, or blocks: PIATYP
Enemies Can't Move: ASNKSAEI
Enemies Don't Die When You Jump On Them Enemies Can Walk Thru Objects And Powerups Fall Down Fast: EYNTGAEI
Enemies don't die when you jump on them, so by jumping on the same one over and over, you get several 1 up's. But shooting them does kill them: KEATZE
Enemies Fall Thru The Floor And Powerups Don't Fall: EYNKSZEI
Enemies follow you!: GNATUE
Best when paired with SSASSA Code
Enemies that are up on blocks don't fall down and other oddities: TEYVPA
Everything is invisible except mario & enemies: OKGASA
Everything is offset by about 2 inches: NTPOLE
Falling Into Pits Takes You Inside Of Pipes (But You Can Get Stuck): ENOLZPEI
Going Down The Very First Pipe In The Game Takes You To A Far Away Land: EYUKIZEI
Hitting mushroom boxes or 1 UP boxes, King Koopa comes out instead: IZKUXKTX
If you press the "A" button, you can position Mario anywhere on the screen. If you don't press the "A" button, the screen won't scroll: ISAENT
It rains "200 point" icons: VTLNKA
Items Are Now worth 6x More: NYTELN
Jump as high as you want! Works while standing, running, or turbo running!: AETLTK
Jumping On An Enemy Gives You Points, But Does Not Kill Them: ESETGAEY
Jumping On Enemies Are Worth 1000 Points: ENOIKPEI
Jumping On Enemies Causes Them To Instantly Disappear: ENVKSZEI
Little mario turns big when he jumps: VGANZA
Little Mario Wears Fire Suit, Fire Mario Wears Normal Suit: EYEAZTEI
Look Like Luigi Until You Get Firepower: ESNEPIEY
Mario can't shoot: EAZLIT
Mario constantly changes colors: EIKZKYEY
Mario has a seizure when he walks his legs move much faster than he's walking: VTYNYA
Mario has semi lunar descent: GETLYG
When you jump you'll float back down to the ground
Mario has variable jump heights. Sometimes he jumps high, sometimes low: YETLYG
Mario skates like gumby: VTTNYA
Mario starts out swimming: NLTOGK
Mario swims in some worlds (and different enemies): NTLOGK
Mario turns big when he walks: VTLNYA
Mario turns into the invisible man: ZSNENT
Mario walks past castle at end of 1-1 and keeps on going forever: AITOSA
Mario walks right thru enemies: UATIUA
Most enemies are invisible, but they die when you touch them: KEATPE
No enemies, or in different places: SYLOKG
Use with PIGOAP or AETLTK to help get past some levels, like 1-2
Opens route to minus world! at end of 1-2: LEAOGK
Pipes, Trees, Shrubs and Hills Are Red Instead Of Green: EYKEATEI
Play as Game Boy mario (everything is black & white): NEPELA
Play as Luigi: GUNAYILS
Play at night: ASTETE
Single Mushroom Enemies Are The Black Beetles: EIEGGZEY
Skip Current Lives Scene: ENKAATEI
Slow-motion, plus other neat stuff: OVAAAE
Squished Enemies Can Get Back Up: ENNGUZEI
Squished Mushrooms Can Be Kicked Like Turtle Shells: ANSIOAEY
Start Off As Big Mario And Mushrooms Make You Small (Visually Only): ESOYGAEY
Swim without water (you're always swimming): PIGOAP
When little mario walks, he turns big, little, big, little, big, little, etc..: VTLNGA
When mario jumps while running, his little legs start running in mid air: VGANAA
X-ray vision bizarre. Shows where hidden blocks are: STPENT
You can jump over the castle at the end of world 1-1 and keep on going. Also, going down tubes does weird things: VTPOZI
You can position Mario anywhere on the screen even when he's moving by holding down the "A" button on controller #2: GSAENT
You Die If You're Hit Once: EIUIKPEY