The mysterious Tenrai has begun a quest to conquer the country by amassing an army of ninjas and lords of darkness. Your master, Lord Gohda, has called upon you, a cunning stealth assassin, to stop Tenrai and his disciples before all is lost. Live by honor. Kill by stealth.

1. Experience online stealth ninja action via Xbox Live, playing with a friend in two-player co-op mode featuring all-new stealth kills or choose from 20 playable characters and go head to head in deathmatch mode.
2. Take advantage of all-new abilities and tools. Drag and hide dead bodies to avoid detection or use ninja mind control to make your enemies turn against each other or commit suicide. New unlockable abilities include being able to camouflage yourself against a wall and an emergency evasion move that you can use to escape an enemy's combo attack. New grand master items include a viper drink that makes you three times stronger and a flash bomb that makes everyone within range dizzy.
3. Complete unique mission objectives, including espionage, theft, and assassination. Uniquely crafted levels allow you to determine the most efficient way to achieve your mission goals. Multiple game endings--based on your earlier decisions in the game and unique enemy placements--keep bringing you back for more.
4. Explore 11 incredibly detailed levels, including two new single-player maps, Samurai Mansion and Deserted Pagoda Temple, featuring realistic lighting and weather effects, breakable items, and authentic character animations.
5. Master new combo attacks, including stealth and jumping moves, played out in breathtakingly gory detail via an improved fighting engine. Take the role of three characters--Rikimaru, Ayame, and one unlockable character--utilizing over 20 authentic ninja weapons and tools. Earn new abilities and combos by racking up stealth kills. Improved gameplay balance with re-tuned enemy AI and new enemy and item placement force you to think on your feet.
6. Pair up in six multiplayer levels with two mission modes: cooperative team-oriented missions and death match mode, where you and a friend sneak up on each other as opposing ninjas.
7. Enjoy two exclusive new functions for hardcore or novice players. The Restart function allows you to restart a mission with all the items previously collected. The Continue function, designed for novice players, alleviates the frustration of dying early in pitfalls and having to return to the beginning of a mission.

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