Cheat mode:
Quickly press [Up] [Down] [Up] [Left] [Up] [Right] when the Mattel Interactive logo appears. A sound will confirm correct code entry. To disable cheat mode, press [Esc] to pause game play, then press [Up] [Left] [Down] [Left] [Right] [Down] [Left]. The phrase "Cheat mode disabled" will be spoken to confirm correct code entry. Press [Right] then press [Space] to quit the game.
All vehicles:
Quickly press [Left] [Up] [Right] [Left] [Up] [Down] [Up] [Left] when the Sandbox Studios logo appears. A sound will confirm correct code entry. Press A + [Up] during game play to select a vehicle.