Ninja Gaiden Sigma 2 PS3

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New Playable Characters - Ninja Gaiden's Rachel, Ayane from Dead or Alive and Momiji from Ninja Gaiden Dragon Sword appear as sexy new playable characters
Online Co-op - Two people can engage in online co-op play, with voice chat, in 10 different stages (in 4 difficulty settings) to complete special missions. Rankings from each mission are recorded and posted online, where gamers can choose their opponents based on players' mission stats.
Visual Diversity - Over 30 unique characters, 17 stages with a variety of environments, and a storyline which unfolds in 70 impressive cutscenes
New Enemies - A variety of new enemies and bosses have been incorporated into the stunning enhanced environments
Variable AI - Contributing to the increased difficulty level, the gameplay differs each time you appear in a level as enemies engage in a variety of different actions as they assess the current situation