Star Soldier – Sony PSP

Star Soldier - Platform: Sony PSP

Boss on Parade mode:
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Complete the game (any difficulty).

God mode:
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Successfully complete level 10 on the Hard difficulty setting to unlock 
the God difficulty setting.

Sound test:
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Get a high score in Normal, 2-Minute, and 5-Minute modes with all three 
ships to unlock the sound test option.

Stage Select mode:
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Clear "Boss on Parade" mode.