Use your secret ninja weapon, the mighty "Yo-Yo Shuriken" to defeat the robot hordes and their deadly bossess. Master the technique of throwing the shuriken to attack enemies from the front and then recalling it to hit them from behind! Focus your energy into the Yo-Yo Shuriken to deliver a powerful charged attack that can cut through several enemies at once! * 7 levels of intense action! * Solo and 2-player co-op modes!