This page contains Ninja Gaiden Sigma Plus Unlockables for Playstation Vita called "Unlock Master Ninja difficulty" and has been posted or updated on Apr 15, 2012 by danbryn.
- Developer: Team Ninja
- Publisher: Tecmo Koei Games
- Genre: Action Adventure
- Release: Feb 22, 2012
- ESRB: Mature
Unlock Master Ninja difficulty
To unlock Master Ninja difficulty you have to complete the game once on very hard difficulty.
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