Teenage Mutant Ninja Turtles: Shadows Of The PastTeenage Mutant Ninja Turtles: Shadows of the Past is a scenario driven campaign game that features story content from the IDW TMNT comic. One player takes on the role of the ultimate villain Shredder while the others take the role of their favorite Turtle. The Turtle players battle their way through a series of 60 90 minute missions in which they develop their characters' strengths fighting styles and equipment along the way to create a lasting story