Bonus Lives
Press B when the Genie blinks during the Bonus Levels for one or two extra lives.

Level Select
Highlight the “Options” selection at the title screen and press Start then press L, R, Start, Select, X, Y, A, B on the second controller. A chime will sound if you enter it correctly. A Level Select option will appear above the Start option on the title screen. Hold L + R and press Up or Down to select the level, and Left or Right to select the section of the level.