Misc.

TitleRAWGame GenieAction ReplayAuthorNoteDemo
Enable Debug ModeAOUZSEIOterpsfan101Hold A and press Start while selecting a saved game slot to bring up the Debug Menu. Any new game that you start will give you 50 of every item. Holding the Select button during gameplay makes you invincible and also allows you to move Mario/Luigi/Toad anywhere on the screen with the d-pad.
Invincibility (mostly)AEXGTUZA
ASXKGLEY
terpsfan101
Jump in MidairAAUZXZZTnolberto82
Keep Powerups in Red Comet LevelsATULPXKZnolberto82
Rabbit Ears Mario/Luigi/Toad can FlyEXEZSZKZsouthbird