Cheat Mode
At the title screen, press the following combination of buttons: A, B, C, A, B, C, B, C, B, A.

Level Skip
Activate cheat mode, then, during game play, press A + B + C to skip levels.

99 Ships
Activate cheat mode, then set the difficulty to 'easy' and press Right four times.

Invincibility
Activate cheat mode, then enter the configuration menu. Put the cursor on options and hold A and press Right twelve times consecutively. Keep A held down until you have exited the menu.

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