G:Super Mario Bros. 2

C:Infinite Lives|SZNESXVK|Most by Galoob|
C:Infinite Life Meter (Except If You Hit A Spike)|GZELVXSE
C:Quick Pick Up|SXUASXOU
C:Special "Squat" High Jumps|AEUEKKGL
C:Princess Has Mega-Float|PPXAOIAA
C:Princess Has Mega-Float And Lunar Descent|PAXAOIAA
C:Super Moonjumps For Mario|PESEGLGA
C:Mega Moonjumps For Luigi|AAEEZGPA
C:Super Moonjumps For Toad|PENALLGA
C:Super Moonjumps For Princess|PAXAPGGA
C:Speed Up Enemies|AEXALGZA
C:Walk Backwards|GOEANKAO<br>USEEEKKA
C:Super Turbo Running|XVVANSZK<br>XVNEXSZV
C:Permanent Turbo Running|AEVAVIIA<br>AENEEITA
C:Super Fast Run For Mario|AXSETUAO<br>ESVAPUEV
C:Super Fast Run For Luigi|AZEEGKAO<br>EIEEYKEV
C:Fast Run For Toad|AXNAIUAO<br>ESNEAUEV
C:Super Fast Run For Princess|AZXALKAO<br>EIXATKEV
C:Super Speed Enemies|AXNAZSAA<br>EVNALSEY

T:THESE ARE TWO VERSIONS GIVEN FOR SOME OF THE FOLLOWING CODES. IF ONE CODE DOESN'T WORK ON YOUR GAME, THEN TRY THE ALTERNATE CODE.

C:Strong Wart|YESUAPTE<br>YESLPPTE
C:Strong Birdetta|IAVENYZE<br>IAVEUYZE
C:Strong Hawkmouth|YEVXVYLE<br>YEVZNYLE
C:Weak Birdetta|AAVENYZA<br>AAVEUYZA
C:Birdetta Spits Eggs Instead Of Fireballs (Appears In Late Levels Of The Game)|TPEPLAAX<br>TONENYAX
C:Strong Tryclyde|YAXXIYZE
C:Strong Fryguy|YAVXVGGE
C:Strong Clawgrip|YAEXTPGE
C:Start On World 2|PEEPUZAG<br>IUEPSZAA<br>TEEPVZPA
C:Start On World 3|ZEEPUZAG<br>IUEPSZAA<br>TEEPVZPA
C:Start On World 4|LEEPUZAG<br>IUEPSZAA<br>TEEPVZPA
C:Start On World 5|GEEPUZAG<br>IUEPSZAA<br>TEEPVZPA
C:Start On World 6|IEEPUZAG<br>IUEPSZAA<br>TEEPVZPA
C:Start On World 7|TEEPUZAG<br>IUEPSZAA<br>TEEPVZPA

T:Miscellaneous

C:Things Disappear|SXAAOO|Rick L|Harder to kill bosses. DO NOT go into sub space.
C:Kill An Enemy And It Flies Upwards (POW Blocks Don't Work)|SXGAOO|Rick L|
C:Easier Time In Wart's Palace, And Mega Moon Jumps For Luigi (Super Jump To Get Up On Top Of Walls)|AAEEZGPA|Rick L|
C:Twister?|KZXALKAO<br>EIXATKEV|Rick L|
C:Princess Has A Longer Flight|KAZAOIAA|Rick L|
C:Pick Up Things With Feet?|PXUASXOU|Rick L|
C:Pogo Princess|KAXAPGGA|Rick L|
C:Super Pogo Princess|XAXAPGGA|Rick L|
C:Random Effects|YEXALGZA|Rick L|
C:Sometimes You Come Out Of A Door Holding An Enemy|EPZOTS|Rick L|
C:Stuff Sticks To Your Feet|TEYOTA|Rick L|
C:Odd Effects|SIPOIS|Rick L|
C:More Sub-Space Time!|ZPZOTN|Rick L|
C:Veggies Fall When You Pick Them Up?!?!|TUNOPA|Rick L|
C:Randomly Screwed Up Ground|OZKONE|Rick L|
C:All Characters Can Float!|ANNEEGEY|Rick L|They float until you release the jump button!
C:Holes In Different Places|LEAPOT|Rick L|
C:Enemies Are Invincible|ELKELG|Rick L|
C:Purdy Colors|KIKESO|Rick L|
C:No Logs In First Level|OKPETZ|Rick L|
C:Drill Mario (Sometimes You Go Thru The Floor)|OPEOPE|Rick L|
C:Where Did All The Enemies Go?|EEAPOT|Rick L|
C:Weird Beginning|EPAEPA|Rick L|
C:Messed Up Levels|EPTEPT|Rick L|
C:Glow In The Dark Enemies|EPKEPK|Rick L|
C:No-Backwards-Travel Mode|YOEANKAO<br>VSEEEKKA|Jon Giusti and Cal Leingang (Geosponge@aol.com)|
C:Stay In Sub-Space Longer Than 1 Minute|YPZOTN|Link|
C:Pick Up Most Scenery|LEGPIO|Link|
C:Can't Jump On Enemies! (You Fall Thru Them And Get Hurt)|EVILXX|Rick L|
C:Pow Blocks Don't Go Away!|STEPPY|Rick L|They just jump up and down all the time! If you throw it at something, it will bounce off pretty fast. You can chase after it to kill more enemies, and if you just toss it next to you, it'll kill any enemy that enters the screen.
C:Altered Music|AASAAS|mariobeing|
C:Keep Picking Up The Grass! (Works In Sub-Space With Coins Too)|NSPPLE|mariobeing|
C:Become Golden With Anybody And You Can Float|KGITVKUU|Dragoneagle250@aol.com|When you hold down A you can walk through enemies and they die.
C:Slight Remix|AASAAS|Neil|
C:Jumbly, With Some Graphic Glitches|EASAAI|Neil|
C:Glitch Beats!|YYSAAS|Neil|

T:Float/Jump Codes

C:Special NOTE|N/A|N/A|If you are using these codes with an emulator, you'll need to enter the codes before you choose your Character.
C:Mario Has "Moon-Float" (Just Like The Princess) (As Long As You Hold Down The Jump Button!!)|GUSEZLAE|Tony Hedstrom|
C:Mario Has Mega "Moon-Float"!  (As Long As You Hold Down The Jump Button!!)|NNSEZLAE|Tony Hedstrom|
C:Mario Has Mega "Moon-Float" And Ultra Slow Descent! (Just Press And Hold The Jump Button!!)|ZAXAOIAA<br>NNSEZLAE|Tony Hedstrom|
C:Mario Will "Moon-Float" As Long As You Hold Down The Jump Button!!|NYXAOIAE<br>NNSEZLAE|Tony Hedstrom|
C:Mario Has "Moon Gravity" Jumps|PESELLYA|Tony Hedstrom|This code is similar to the SMB1 Moon Gravity codes, if you just tap the jump button really quickly, Mario slowly jumps VERY high and then floats back down, but if you hold down the jump button, Mario jumps normally.  A fun code.
C:Mario Has "Mega-Jump" And "Moon Float"!|PESELLYA<br>NNSEZLAE|Tony Hedstrom|Mario can jump all the way to the top of the screen, and float there for about 6 seconds.  Just quickly tap the jump button and then when Mario reaches the top of the screen, press and hold the jump button and he will float there for about 6 seconds.  A very fun code.
C:Luigi Has "Moon-Float" (Just Like The Princess) (As Long As You Hold Down The Jump Button!!)|GLEEAGAE|Tony Hedstrom|
C:Luigi Has Mega "Moon-Float"!  As Long As You Hold Down The Jump Button!!|NYEEAGAE|Tony Hedstrom|
C:Luigi Has Mega "Moon-Float" And Ultra Slow Descent! (Just Press And Hold The Jump Button)|ZAXAOIAA<br>NYEEAGAE|Tony Hedstrom|
C:Luigi Will "Moon-Float" As Long As You Hold Down The Jump Button!!|NYXAOIAE<br>NYEEAGAE|Tony Hedstrom|
C:Toad Has "Moon-Float" (Just Like The Princess) (Just Press And Hold The Jump Button)|GUNAPLAE|Tony Hedstrom|
C:Toad Has Mega "Moon-Float"! (Just Press And Hold The Jump Button)|NNNAPLAE|Tony Hedstrom|
C:Toad Has Mega "Moon-Float" And Ultra Slow Descent! (Just Press And Hold The Jump Button)|ZAXAOIAA<br>NNNAPLAE|Tony Hedstrom|
C:Toad Will "Moon-Float" As Long As You Hold Down The Jump Button!!|NYXAOIAE<br>NNNAPLAE|Tony Hedstrom|
C:Every 2nd Large Vegetable That You Pull Up Will Be A Stop Watch (Instead of Every 5th)|ZESOTAIA|Tony Hedstrom|
C:Pulling Up Small Vegetables Gives You A POW Block|ZLVOLAZU|Tony Hedstrom|
C:Pulling Up Small Vegetables Gives You A Stop Watch|TGVOLAZL|Tony Hedstrom|
C:Pulling Up Small Vegetables Gives You A Heart|AAVOLAZL|Tony Hedstrom|Note: You must press the "B" button again before you can get the heart.
C:Pulling Up Small Vegetables Gives You A Coin|TLVOLAZL|Tony Hedstrom|
C:Pulling Up Small Vegetables Gives You A Mushroom|YLVOLAZU|Tony Hedstrom|Note: Each time you collect a Mushroom, you will get an extra "Life Meter" block, and after awhile the meter graphics start to look a little weird.
C:Pulling Up Small Vegetables Gives You A 1-Up Mushroom|AGVOLAZL|Tony Hedstrom|
C:Pulling Up Small Vegetables Gives You A Key|ILVOLAZU|Tony Hedstrom|
C:Pulling Up Small Vegetables Gives You A Sub-Space Door|GLVOLAZU|Tony Hedstrom|Note: You must press the "B" button again before you can enter the door.
C:Pulling Up Small Vegetables Gives You A Bomb|YLVOLAZL|Tony Hedstrom|
C:Pulling Up Small Vegetables Gives You A Star|IGVOLAZL|Tony Hedstrom|Note: You have to press the "B" button again before you can get the star.
C:Pulling Up Small Vegetables Gives You A Turtle Shell|ILVOLAZL|Tony Hedstrom|
C:Pulling Up Small Vegetables Gives You A Red Log|LLVOLAZU|Tony Hedstrom|Note: If you press the "B" button again, you can ride the Red Log to the top of the screen!
C:Pulling Up Small Vegetables Gives You A Spark|ALVOLAZL|Tony Hedstrom|
C:Pulling Up Small Vegetables Gives You A Mushroom Block|PLVOLAZU|Tony Hedstrom|Note: This code will let you throw the block an infinite number of times because after you throw it, it turns back into a small vegetable (just pull it and throw it again).
C:Pulling Up Large Vegetables Gives You A POW Block|ZLVOZALU|Tony Hedstrom|
C:Pulling Up Large Vegetables Gives You A Heart|AAVOZALL|Tony Hedstrom|Note: You must press the "B" button again before you can get the heart.
C:Pulling Up Large Vegetables Gives You A Coin|TLVOZALL|Tony Hedstrom|
C:Pulling Up Large Vegetables Gives You A Mushroom|YLVOZALU|Tony Hedstrom|Note: Each time you collect a Mushroom, you will get an extra "Life Meter" block, and after awhile the meter graphics start to look a little weird.
C:Pulling Up Large Vegetables Gives You A 1-Up Mushroom|AGVOZALL|Tony Hedstrom|
C:Pulling Up Large Vegetables Gives You A Sub-Space Door|GLVOZALU|Tony Hedstrom|Note: You must press the "B" button again before you can enter the door.
C:Pulling Up Large Vegetables Gives You A Bomb|YLVOZALL|Tony Hedstrom|
C:Pulling Up Large Vegetables Gives You A Star|IGVOZALL|Tony Hedstrom|Note: You have to press the "B" button again before you can get the star.
C:Pulling Up Large Vegetables Gives You A Turtle Shell|ILVOZALL|Tony Hedstrom|
C:Pulling Up Large Vegetables Gives You A Red Log|LLVOZALU|Tony Hedstrom|Note: If you press the "B" button again, you can ride the Red Log to the top of the screen!
C:Pulling Up Large Vegetables Gives You A Spark|ALVOZALL|Tony Hedstrom|
C:Pulling Up Large Vegetables Gives You A Mushroom Block|PLVOZALU|Tony Hedstrom|Note: This code will let you throw the block an infinite number of times because after you throw it, it turns back into a large vegetable (just pull it and throw it again).
C:Frozen Enemies (And Other Things)|EEAPET|MackLonghorn|Causes all enemies to be stuck in place.  However, the downside is that if you pull up a veggie, you cannot throw it.  It will hang in midair where you can grab it again or *try* to jump on it.  Most animated sprites seem to be stuck (logs, stars, Birdetta eggs...).  DO NOT try to pick up enemies, as you will get stuck in the middle of the animation.  Same goes for POW blocks, Birdetta eggs (if you can get to them!), and probably some other objects.  Inhibits real gameplay, but if someone can figure out how to allow for other objects to work correctly, they may feel free to alter this code to do so.

T:Miscellaneous Codes

C:Things And Enemies Might Disappear|SXAAOO|Jesse Smith|You have a little more challenge killing the bosses. In the first boss, level 1-1, you have to be a little farther for the egg to hurt Birdo, or it doesn't do anything. Just don't go into sub space. You can never get out. 
C:When You Kill An Enemy, It Goes Straight Up|SXGAOO|Jesse Smith|If two enemies bump into each other, they both go straight up. Enemies might disappear. POW blocks don't work.
C:TWISTER!!|KZXALKAO<br>EIXATKEV|fischer@nts-online.net|
C:Princess Has Suspended Flight!|KAXAOIAA|fischer@nts-online.net|     
C:Pick Up Things With Legs (Don't Ask - It's A Very Weird Code)|PXUASXOU|fischer@nts-online.net|     
C:Pogo Stick For Princess|KAXAPGGA|fischer@nts-online.net|     
C:Super Pogo For Princess|XAXAPGGA|fischer@nts-online.net|     
C:WEIRD Effects (Completely Unpredictable)|YEXALGZA|fischer@nts-online.net|     
C:Sometimes You Come Out A Door Holding An Enemy|EPZOTS|Bobby Flory|     
C:Veggies, Bombs, 1-Ups Stick To Your Feet (You Can Throw Stopwatches & 1-Ups Across The Ground!)|TEYOTA|Bobby Flory|     
C:You Fall From The Sky, Tweeter Can't Hop, And The Underground Tune Is A Bit Messy|SIPOIS|Bobby Flory|     
C:More Time In Sub-Space!|ZPZOTN|Bobby Flory|     
C:Veggies Fall When Pulled Up|TUNOPA|Bobby Flory|     
C:Randomly Messed-Up Ground, Sometimes Isn't There At All|OZKONE|Bobby Flory|     
C:All Characters Have Mega-Float Capability (You Will Float Until You Release The Jump Button)|ANNEEGEY|James Haley|
C:Holes|LEAPOT|Colin Healy|     
C:Can't Kill Anyone|ELKELG|Colin Healy|     
C:Nice Colors|KIKESO|Colin Healy|     
C:Logs In First Level Are Gone|OKPETZ|Colin Healy|     
C:Drill Mario|OPEOPE|Colin Healy|     
C:Baddies Are Gone|EEAPOT|Colin Healy|     
C:Weird In Beginning|EPAEPA|Colin Healy|     
C:Levels Are Messed Up|EPTEPT|Colin Healy|     
C:Enemies Glow|EPKEPK|Colin Healy|