Run and Fireballs - Z or K Jump - X or Up Arrow or W or L Move - Left and Right Arrows or A and D Crouch (only for when Mario/Luigi is big) - Down Arrow or S Start/Pause - Enter or P Menu Select - Space Bar Mute/Unmute - M World Select - B (works after the game is beat) (To play as Luigi: hold the L key while pressing the enter or P key)
Nintendo for Super Mario Bros.
