Bonus levels (Buster Buddies):
Press X on controllers one and two when selecting a normal
game. Ten extra stages will be available for game play.
Level select (Super Buster Brothers and Buster Buddies):
Press Down + X when selecting a normal game.
GameShark Codes
Infinite Lives (Buddies)801712260202 Infinite Lives (Buster)800c59400003 Infinite Lives (Super Buster)800a4a100003
Thanks to Revolution reader Dino!