Sega has announced that Shinobi will feature a special guest in the form of theoriginal shinobi, Joe Musashi (seen furtively crouching here). The game's challenge mode features a playable Joe Musashi, and will be unlockable via either Play Coins or StreetPass.
As the name implies, challenge mode faces players with a difficult set of levels. To make them even tougher, Sega notes that players will die in one hit, a nod to Shinobi's arcade roots. See Joe in action in the trailer above.