More:Game Center CX: Arino no Chousenjou 2: Cosmic Gate

From GameWinners

Contents 1 Cheat Codes 1.1 Continue 1.2 Power-up 2 Unlockables 2.1 Alternate ending

Cheat Codes

Continue

Hold Left and press Start at the "Game Over" screen.
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Power-up

Pause game play, then press Up(2), A(2), B(2). Note: This can only be enabled once.

Unlockables

Alternate ending

Successfully complete the game without killing more than thirteen enemies. Note: The total does not include the asteroids and Bosses in the Asteroid Zone.