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Finish Mission 1 without being spotted by anyone except Echigoya.
Finish Mission 28 without being discovered by anyone.
Finish Mission 8 with at least 90 seconds left.
Finish Mission 21 with at least 60 seconds left.
Finish Mission 11 without taking any damage.
Finish Mission 26 without taking any damage.
Pull off a 15-hit combo.(Solo Play)
Pull off a 20-hit combo.(Solo Play)
Pull off a 25-hit combo.(Solo Play)
Unlock all available characters.