Super Mario Bros + Duck Hunt 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.
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.
Automatically Shoot Fireballs (Unless holding B): EIXUYTEY
Fireballs Don't Bounce: ENSVTPEI
Invincibility Star Does Not Bounce, Firepower Plant Moves Like Mushroom Powerups: ESOUUGEY
Invincibility Star Moves Horizontally: EINTGPEY
Invincibility Star Stay's Put: ENOUNGEI
Invincibility Stars Give Extra Live Instead: EIOIKAEY
Powerups Don't Fall: ESVSKYEY
Powerups Don't Move: ENOLUGEI
Some Powerups Don't Move: ESOLNGEY
Player 1 Play as Luigi: GUNAYILS
After the first pipe, mario keeps on going forever (no obsticles): NTPOLS
All ? Boxes Give 1ups: ESNUUIEY
All Blocks Give Coins: EYULOTEI
All enemies are gone!: TSPIIT
Always Run: EYKLLIEI
Automatically Jump On Enemies: EYOIOPEI
Automatically Jump On Enemies (Alt): ASNSSAEI
Double Mushroom Enemies Are Super Fast: EYKKALEI
Double Mushroom Enemies Are The Black Beetles: EIXKLYEY
Enemies And Powerups Can't Move: EIOTIPEY
Enemies Are Powerups: ANEISAEI
Enemies Die When They Touch You: ESESSAEY
Enemies Don't Die When You Jump On Them And Powerups Don't Fall: ENVIOYEI
Enemies That Fall From One Platform To A Lower One Die: ENEVTAEI
Infinite Time: EISLZYEY
Instantly Go Down Pipes: EYEUTZEI
Invincibility! Let an enemy touch you and see what happens: SSASSA
Invincibility! Mario walks right thru enemies: UATIUE
Invulnerability (Walk Thru Enemies): ENOSSAEI
Jump Thru Blocks: ESUINGEY
Mario always walks crouched down: VGANYA
Mario can float for a very long time: PAZULG
Press and hold Jump to make this work. Only works from a standing start
Mario can jump higher when walking, running, or turbo running! Also, he jumps further only when normal running: AEAENT
Mario can swim everywhere, and you start some worlds about 1/2 way thru: AAGOPO
Change the first letter of this code to a G and you'll start near the end of each level. You can also change it to a P, Z or L and you'll start in different areas throughout the level.
Most enemies are frozen!: AALLEY
Most enemies are gone: TSLIIT
Once you turn into Fire Mario, you will always be able to shoot fireballs, even if you turn small again until you die: PAZSKO
If you touch an enemy you'll also power up. On some emulators you'll also become invincible with this code.
Shoot 2 Fireballs At Once: EYULLTEI
Similar to "Take no damage from most enemies!" code: PAZSSO
Start with 400 more seconds, and invincibility for the first 10 seconds: GUAOPO
Super mega jump, standing start only: AETLIK
If you try to jump while running you won't go very far, but if you jump from standing still you'll go as high as you want.
Take no damage from most enemies!: PAASNO
You may have to become Big Mario or jump on an enemy to become invincible
Take no damage from touching enemies!: UAYIUA
The pipes you can't go down are upside-down, the pipes you can go down are normal: ANTOSA
The Very First Pipe In The Game Takes You To World 3-1: EIESNYEY
Time starts at 150 instead of 400 plus about 30 seconds of invincibility at the start of every life: YNAOPO
Time starts at 600 instead of 400 plus about 10 seconds of invincibility at the start of every life: LXAOPP
Time starts at 900 instead of 400: VGYOKK
Time starts at 995 instead of 400 plus about 20 seconds of invincibility at the start of every life: GVAOPP
Time starts with one extra minute 460 instead of 400: LEAOPO
Timer counts up instead of down!!: VVAANY
Turtles Are Toad: EYOTEZEI
Vines Grow Inside And Outside Pipes After Going Thru Them: ESOOZPEY
Walk Thru Enemies And Powerups: EYVVTZEI
Walk Thru Enemies And Powerups (Alt): EYVIEAEI
Walk Thru Objects (Right Direction): ENOSOIEI
Walk Thru Walls, Pipes Etc: ESOSNIEY
World Select: EIVEYZEY
Press B on the Title Screen to change your starting world
Play unused Game Over variation everywhere
ZPSNALAA
PZSYYUOX
Get The Perfect Bonus For Hitting At Least 10 Targets
ZEUIYZAE
??USP?UU
Get The Perfect Bonus Only For Hitting 20 Targets
This must be used with the "Always Advance" code
GPSIAUZA
ALSIPLEI