Devil May Cry 4
Unlock Super Nero & Dante Costumes:
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Finish the game on Dante must die difficulty.
Unlock more difficulty levels:
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There are three hard core difficulty levels. Son of Sparda,
which then unlocks Dante Must Die and Heaven or Hell.
Unlock full ending:
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To see an extended version of the ending, prevent Kyrie from being
hurt for at least a minute and a half as the credits run. If you
manage to do this, the rest of the ending is shown to you.
