| Unlockable | How to unlock
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- Ancient Hissatsu Techniques
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| - Obtain an S Rank on all 50 Assignments.
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| - Get all 20 mask pieces in Shadow Mode.
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- Izayoi (Rikimaru's Unbreakable Sword)
| - Get all of the map pieces in stages 1 through 5, and 10.
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- Onibi (Ayame's Unbreakable Sword)
| - Get all of the map pieces in stages 6 through 9.
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