Level select: Select the Marvin Martian icon at the start game screen, then enter #OP as a code. All mini-games: Select the Daffy Duck icon at the start game screen, then enter ?BN as a code to unlock all the mini-games. Two player Boss games: Select the Big Red icon at the start game screen, then enter *JC as a code. All art gallery: Select the Tweety icon at the start game screen, then enter .RT as a code. No whack in boxes: Select the Taz icon at the start game screen, then enter !WB as a code.