[Super Mario Brothers]
Code=0007EEFF : Have 255 Coins
Code=0007FA04 : Stop Time
Code=000756FF : Invincibility (AR)
Code=00075A02 : Infinite Lives
Code=ZZZSSO : Invincibility
Code=EEESKA : Invincibility, plow enemies over
Code=PUESUE : Invincibility, plow enemies over (type 2)
Code=SUEISA : Invincibility, thrive on enemies
Code=GANINE : Invincibility, thrive on enemies (type 2)
Code=OEPSKA : Invincibility, run through enemies
Code=IOEOIO : Become starman for 120 seconds
Menu=Become invincible starman
Code=ZZZLTT : Infinite firepower
Code=PNAPZO : More time
Code=VZTLTN : Infinite time
Code=All holes filled in
Code=PSSSSO : Everything you stomp turns into a 1-up
Code=USNUKS : Every gold block contains a 1-up
Code=EXYSEA : Perform the 100-man trick on every enemy
Code=SEIING : Hit a block, and it becomes night time
Menu=Always night time
Code=AEPISP : No enemies bounce when you stomp them
Code=SOIIEA : All nemies bounce when you hit them
Code=NVOLNN : Enemies fly away when you hit them
Menu=Super mega float
Code=SEPUEG : Score keeps rising after hitting a mushroom block
Code=ATAPIX : Always restart at the beginning of the level
Code=GIXPIG : World 1 has world 2 backgrounds
Code=NIYPIT : Remove all unnecessary plants
Code=NUKISA : Many 1-ups
Code=IVYIVY : Super fast enemies
Menu=Access to world -1
Code=GISPTG : Always underwater
Menu=Super challenge
Menu=Come back after a fall

[Access to world -1]
Note=Go to the usual spot near the end of level 1-2.
KKOOPK

[Come back after a fall]
Note=Avoid going to the very top when on level 1-2 ramps.
PXYLUN
APZLGG

[Super challenge]
STAGEO
SPEPNY

[Always night time]
Note=Do not lose a life in level 2-2 waterworld or the game will freeze.
SPOATV

[Super mega float]
Note=You must touch ground at some point during level 7-3, or it will go forever.
NTKOTP

[Become invincible starman]
PKAOZO
STAPGO

[All holes filled in]
Note=Especially useful in world 8.
GOAOSU
APZLGG