Easy Mode (Japanese Version)
At the options screen, highlight "MUSIC" and press C 10 times. If done right, you'll be able to select the "Easy" difficulty.
Play until level 2, then drive the tank off the edge exactly as the timer runs out. Your tank will explode and the timer will reset. Your new tank will be able to fly around and attack from outside the ship until your time runs out again.
Contributed By: DarknessofFate.
Trip and Fall
At the ending, after the credits are over and "Presented by Wolf Team" appears, hold the A button for 15 seconds and the main character (who is still walking away from the explosion) will trip and fall.
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