Press [Tab] to pause game play. Then, enter one of the following codes to activate the corresponding cheat function.
Effect Code
Full ammo aaa
Full shields sss
Heat seeking missile launcher mmm
Additional vehicle vvv
Level skip
Type cheat on the vehicle selection screen. Then type followed by . Note: For the stage number, entering "3" will start the bonus stage and "5" will start the Boss stage.
Unlimited lives
Hold [Command] + [Shift] + [Ctrl] immediately after getting hit.