IGN: Tenchu: Shadow Assassins Hands-On

In Shadow Assassins, you control either Rikimaru or Ayame through a series of story missions that tell of their exploits under Lord Gohda's employment. Besides the story missions -- which can last an hour or more depending on how often you stumble -- players can also undertake short Assignment missions that not only let you practice certain techniques but give you a method for breaking up the pace of the longer levels.