Ninja Gaiden Sigma 2 is the exclusive PS3 video game that brings back an intense, challenging and action-packed ninja adventure. Players will follow super ninja Ryu as he travels from Tokyo to New York, encountering vicious enemies and acquiring a variety of weaponry along the way. Three new playable characters have been added: Rachel from Ninja Gaiden, Ayane from Dead or Alive series and Momiji from Dragon Sword. The game also features 10 stages with 4 difficulty settings for two players to engage in online co-op play with voice chat capabilities. There are more than 30 unique characters, 17 stages with different environments and 70 cut scenes in which the storyline unfolds. Variable AI helps increase difficulty level while a finishing blow system allows you to quickly defeat an enemy in one dynamic action. Weapons can be leveled up to strengthen their power and gain new battle techniques for even greater combat experience enhanced by full HD 1080p output and 5.1ch surround sound effects respectively.