Level Skip
At the title screen, press Up, Down, Left, Right, Up, Down, Left, Right. If you've done this correctly, you will hear "Excellent!" Now start the game. To skip a level, pause the game and press B + C simultaneously.
Never Overheat
If you have a rapid-fire controller, enable rapid-fire for the game's fire button. When you shoot your machine gun, the heat indicator will not move.
