X-Blades

Unlockable: Feel Good Costume:
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In "The Great Rift," there is a circular room that has ledges floating
in it. If you look down, it continues downward and upward. Carefully 
jump to the very middle top and you will see an item sitting there. 
This is the Feel Good costume, and it will be equipped immediately 
once taken.


Pro mode:
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Successfully complete the game to unlock the Pro difficulty.


Bonus costumes:
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Successfully complete the game on any Hard difficulty to unlock 
the Armored and Regeneration costumes.