Funny, considering the storyline tie-in with Dead or Alive, Ninja Gaiden could've had the ultimate multi-player and multiple character use during SP game for hack n slash action games if they would've just used all the ninjas from Dead or Alive within it as well and put forth an equal amount of different moves and weapons for each character as they did Ryu. Could've been ill as shyt to run with Ryu and Ein/Hayate NG storyline and just have even more enemies and shyt. Ah well.