Cheat : Extra credits (Japanese version): Repeatedly tap Select at the title screen to set the total credits to nine.
Free play mode: Hold L1 + L2 + R1 + R2 and press Start when the phrase "Press Start" appears at the opening screen. While still holding L1 + L2 + R1 + R2 press Up(7), Down, Up(4), Start. The phrase "Limiter released" will be spoken to confirm correct code entry. Enter the configuration screen and turn off the credit limit to enable free play mode. Alternatively, play the game a total of two hundred times.
Level select: Successfully complete the combat mode game under arcade mode:
Thirteen ships: Successfully complete the combat mode game under extra mode:
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