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</br>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.</br>Visual Diversity - Over 30 unique characters?? 17 stages with a variety of environments?? and a storyline which unfolds in 70 impressive cut scenes</br>New Enemies - A variety of n