Tenchu: Shadow Assassins (PSP)
From GameWinners
This game is titled Tenchu: Shadow Assassins in North America, Europe, and Australia, and Tenchu 4 in Japan.
Unlockables
Shadow mode
Successfully complete a mission in Normal Story mode. You can now press Start at the mission selection screen in Story mode to switch to Shadow mode. This will allow you to replay the completed missions with more enemies, less items, and alternate layouts.
Rikimaru's unbreakable sword
Collect all scroll parts as Rikimaru.
Ayame's unbreakable sword Onibi
Get all of the map pieces in Stages 6 through 9 under the Normal difficulty. Alternately, collect all scroll parts as Ayame.
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Ninja Tabi '08
Successfully complete Story mode.
Three random endless items
Get all mask parts as Rikimaru.
Oni mask
Get all mask parts as Rikimaru and Ayame. Wear it to use Onikage. If equipped with a sword he will wield an unbreakable large sword that does a big amount of damage.
Ancient Hissatsu
Complete 30 assignments.
Classic Tenchu costumes
Complete Story mode.
Colored rice
Complete all fifty training assignments with an "S" rank.
Art Gallery
Successfully complete ten assignments with an "S" rank in Assignment mode.
Music gallery
Successfully complete twenty assignments with an "S" rank in Assignment mode.
Sound gallery
Successfully complete twenty assignments with an "S" rank in Assignment mode.
Memories option
Successfully complete 40 Assignments. The "Memories" option is a gallery of videos.
Ultimate Power
Earn an "S" rank on all 50 Assignments.
Extra assignments
There are a total of four extra assignments that can be unlocked for each mission in Story mode. Your rank in a mission will determine how many of its extra assignments will become unlocked.
- Two extra assignments: Get a "B" rank in a Story mode mission.
- Three extra assignments: Get an "A" rank in a Story mode mission.
- Four extra assignments: Get an "S" rank in a Story mode mission.

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