Press Ⓐ or ← (Left Arrow) to go left. Press Ⓓ or → (Right Arrow) to go right. Press ⓦ or ↑ (Up Arrow) to jump. Press Ⓢ or ↓ (Down Arrow) to crouch. Press [ SPACEBAR ] to sprint or throw fireballs as Fire Mario.
Credit to: Nintendo, for some SMB2 USA All-Stars sprites other stuff, RTB and Glacial Siren 484 for Mario's turning around sprites and Mario's climbing sprite izaguirrefermin28 for Fire Mario's sprites, Ragey for the Koopa Troopas, and @Will_wam for the original project.
