"Level Select" code!! by Tony Hedstrom
Game Genie
YSAOPE
YEAOZA
After the first pipe, mario keeps on going forever (no obsticles) by Tony Hedstrom
Game Genie
NTPOLS
Air Bubbles Come Out Of Mario by Mezmorize
Game Genie
EYNLPTEI
All ? Boxes Give 1ups by Mezmorize
Game Genie
ESNUUIEY
All Blocks Give Coins by Mezmorize
Game Genie
EYULOTEI
All castles are missing, but game still plays normally. by Tony Hedstrom
Game Genie
STPONE
All enemies are gone! by Tony Hedstrom
Game Genie
TSPIIT
Always Run by Mezmorize
Game Genie
EYKLLIEI
Automatically Jump On Enemies by Mezmorize
Game Genie
EYOIOPEI
Automatically Jump On Enemies (Alt) by Mezmorize
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ASNSSAEI
Big mario turns little when he jumps by Tony Hedstrom
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VGANPA
Can Continue Jumping On A Squished Enemy (alt) by Mezmorize
Game Genie
ESUISAEY
Can Continue Jumping On A Squished Enemy (Easy 1ups) by Mezmorize
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ESXSOAEY
Change Stage Layout by Mezmorize
Game Genie
ENVOLIEI
Demo Mode by Mezmorize
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PENEGZAA
Disable Audio by Mezmorize
Game Genie
ENSYLZEI
Double Mushroom Enemies Are Super Fast by Mezmorize
Game Genie
EYKKALEI
Double Mushroom Enemies Are The Black Beetles by Mezmorize
Game Genie
EIXKLYEY
Enemies And Powerups Can't Move by Mezmorize
Game Genie
EIOTIPEY
Enemies Are Powerups by Mezmorize
Game Genie
ANEISAEI
Enemies Are Toad by Mezmorize
Game Genie
ENUTKAEI
Enemies can go thru pipes, walls, and blocks! Mario as usual can't go thru pipes, walls, or blocks. by Tony Hedstrom
Game Genie
PIATYP
Enemies Can't Move by Mezmorize
Game Genie
ASNKSAEI
Enemies Die When They Touch You by Mezmorize
Game Genie
ESESSAEY
Enemies Don't Die When You Jump On Them And Powerups Don't Fall by Mezmorize
Game Genie
ENVIOYEI
Enemies Don't Die When You Jump On Them Enemies Can Walk Thru Objects And Powerups Fall Down Fast by Mezmorize
Game Genie
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. by Tony Hedstrom
Game Genie
KEATZE
Enemies Fall Thru The Floor And Powerups Don't Fall by Mezmorize
Game Genie
EYNKSZEI
Enemies follow you! by Tony Hedstrom
Game Genie
GNATUE
Enemies that are up on blocks don't fall down and other oddities by Tony Hedstrom
Game Genie
TEYVPA
Enemies That Fall From One Platform To A Lower One Die by Mezmorize
Game Genie
ENEVTAEI
Everything is invisible except mario & enemies by Tony Hedstrom
Game Genie
OKGASA
Everything is offset by about 2 inches by Tony Hedstrom
Game Genie
NTPOLE
Falling Into Pits Takes You Inside Of Pipes (But You Can Get Stuck) by Mezmorize
Game Genie
ENOLZPEI
Get The Perfect Bonus For Hitting At Least 10 Targets by Cheatmaster
Game Genie
ZEUIYZAE
??USP?UU
Get The Perfect Bonus Only For Hitting 20 Targets by Cheatmaster
Game Genie
GPSIAUZA
ALSIPLEI
Going Down The Very First Pipe In The Game Takes You To A Far Away Land by Mezmorize
Game Genie
EYUKIZEI
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 by Tony Hedstrom
Game Genie
ISAENT
Infinite Time by Mezmorize
Game Genie
EISLZYEY
Instantly Go Down Pipes by Mezmorize
Game Genie
EYEUTZEI
Invincibility! Let an enemy touch you and see what happens. by Tony Hedstrom
Game Genie
SSASSA
Invincibility! Mario walks right thru enemies by Tony Hedstrom
Game Genie
UATIUE
Invulnerability (Walk Thru Enemies) by Mezmorize
Game Genie
ENOSSAEI
It rains "200 point" icons by Tony Hedstrom
Game Genie
VTLNKA
Items that were worth 1,000 points, are now worth 1,000,000,000 points!! by Tony Hedstrom
Game Genie
NYTELN
Jump as high as you want! Works while standing, running, or turbo running! by Tony Hedstrom
Game Genie
AETLTK
Jump Thru Blocks by Mezmorize
Game Genie
ESUINGEY
Jumping On An Enemy Gives You Points, But Does Not Kill Them by Mezmorize
Game Genie
ESETGAEY
Jumping On Enemies Are Worth 1000 Points by Mezmorize
Game Genie
ENOIKPEI
Jumping On Enemies Causes Them To Instantly Disappear by Mezmorize
Game Genie
ENVKSZEI
Little mario turns big when he jumps by Tony Hedstrom
Game Genie
VGANZA
Little Mario Wears Fire Suit, Fire Mario Wears Normal Suit by Mezmorize
Game Genie
EYEAZTEI
Look Like Luigi Until You Get Firepower by Mezmorize
Game Genie
ESNEPIEY
Mario always walks crouched down by Tony Hedstrom
Game Genie
VGANYA
Mario can float for a very long time by Tony Hedstrom
Game Genie
PAZULG
Mario can jump higher when walking, running, or turbo running! Also, he jumps further only when normal running. by Tony Hedstrom
Game Genie
AEAENT
Mario can swim everywhere, and you start some worlds about 1/2 way thru by Tony Hedstrom
Game Genie
AAGOPO
Mario can't shoot by Tony Hedstrom
Game Genie
EAZLIT
Mario has a seizure when he walks his legs move much faster than he's walking. by Tony Hedstrom
Game Genie
VTYNYA
Mario has semi lunar descent by Tony Hedstrom
Game Genie
GETLYG
Mario has variable jump heights. Sometimes he jumps high, sometimes low. by Tony Hedstrom
Game Genie
YETLYG
Mario skates like gumby by Tony Hedstrom
Game Genie
VTTNYA
Mario starts out swimming by Tony Hedstrom
Game Genie
NLTOGK
Mario swims in some worlds (and different enemies) by Tony Hedstrom
Game Genie
NTLOGK
Mario turns big when he walks by Tony Hedstrom
Game Genie
VTLNYA
Mario turns into the invisible man by Tony Hedstrom
Game Genie
ZSNENT
Mario walks past castle at end of 1-1 and keeps on going forever by Tony Hedstrom
Game Genie
AITOSA
Mario walks right thru enemies by Tony Hedstrom
Game Genie
UATIUA
Most enemies are frozen! by Tony Hedstrom
Game Genie
AALLEY
Most enemies are gone by Tony Hedstrom
Game Genie
TSLIIT
Most enemies are invisible, but they die when you touch them. by Tony Hedstrom
Game Genie
KEATPE
No enemies, or in different places by Tony Hedstrom
Game Genie
SYLOKG
Once you turn into Fire Mario, you will always be able to shoot fireballs, even if you turn small again until you die. by Tony Hedstrom
Game Genie
PAZSKO
Opens route to minus world! at end of 1-2 by Tony Hedstrom
Game Genie
LEAOGK
Pipes, Trees, Shrubs and Hills Are Red Instead Of Green by Mezmorize
Game Genie
EYKEATEI
Play as Game Boy mario (everything is black & white) by Tony Hedstrom
Game Genie
NEPELA
Play at night by Tony Hedstrom
Game Genie
ASTETE
Shoot 2 Fireballs At Once by Mezmorize
Game Genie
EYULLTEI
Similar to "Take no damage from most enemies!" code by Tony Hedstrom
Game Genie
PAZSSO
Similar to above code by Tony Hedstrom
Game Genie
PETLYG
Single Mushroom Enemies Are The Black Beetles by Mezmorize
Game Genie
EIEGGZEY
Slow-motion, plus other neat stuff by Tony Hedstrom
Game Genie
OVAAAE
Squished Enemies Can Get Back Up by Mezmorize
Game Genie
ENNGUZEI
Squished Mushrooms Can Be Kicked Like Turtle Shells by Mezmorize
Game Genie
ANSIOAEY
Start Off As Big Mario And Mushrooms Make You Small (Visually Only) by Mezmorize
Game Genie
ESOYGAEY
Start with 400 more seconds, and invincibility for the first 10 seconds. by Tony Hedstrom
Game Genie
GUAOPO
Super mega jump, standing start only by Tony Hedstrom
Game Genie
AETLIK
Swim without water (you're always swimming) by Tony Hedstrom
Game Genie
PIGOAP
Take no damage from most enemies! by Tony Hedstrom
Game Genie
PAASNO
Take no damage from touching enemies! by Tony Hedstrom
Game Genie
UAYIUA
The pipes you can't go down are upside-down, the pipes you can go down are normal. by Tony Hedstrom
Game Genie
ANTOSA
The Very First Pipe In The Game Takes You To World 3-1 by Mezmorize
Game Genie
EIESNYEY
Time starts at 150 instead of 400 plus about 30 seconds of invincibility at the start of every life by Tony Hedstrom
Game Genie
YNAOPO
Time starts at 600 instead of 400 plus about 10 seconds of invincibility at the start of every life by Tony Hedstrom
Game Genie
LXAOPP
Time starts at 900 instead of 400 by Tony Hedstrom
Game Genie
VGYOKK
Time starts at 995 instead of 400 plus about 20 seconds of invincibility at the start of every life by Tony Hedstrom
Game Genie
GVAOPP
Time starts with one extra minute 460 instead of 400 by Tony Hedstrom
Game Genie
LEAOPO
Timer counts up instead of down!! by Tony Hedstrom
Game Genie
VVAANY
Turtles Are Toad by Mezmorize
Game Genie
EYOTEZEI
Vines Grow Inside And Outside Pipes After Going Thru Them by Mezmorize
Game Genie
ESOOZPEY
Walk Thru Enemies And Powerups by Mezmorize
Game Genie
EYVVTZEI
Walk Thru Enemies And Powerups (Alt) by Mezmorize
Game Genie
EYVIEAEI
Walk Thru Objects (Right Direction) by Mezmorize
Game Genie
ENOSOIEI
Walk Thru Walls, Pipes Etc. by Mezmorize
Game Genie
ESOSNIEY
When little mario walks, he turns big, little, big, little, big, little, etc... by Tony Hedstrom
Game Genie
VTLNGA
When mario jumps while running, his little legs start running in mid air. by Tony Hedstrom
Game Genie
VGANAA
World Select by Mezmorize
Game Genie
EIVEYZEY
X-ray vision bizarre. Shows where hidden blocks are. by Tony Hedstrom
Game Genie
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. by Tony Hedstrom
Game Genie
VTPOZI
You can position Mario anywhere on the screen even when he's moving by holding down the "A" button on controller #2. by Tony Hedstrom
Game Genie
GSAENT
You Die If You're Hit Once by Mezmorize
Game Genie
EIUIKPEY