Teenage Mutant Ninja Turtles Mutant Mayhem Chopper Cycle with Rocksteady Vehicle & Action Figure. Get ready for the Mutant Mayhem figures and vehicles, based on the new CG animated Teenage Mutant Ninja Turtles movie! When Superfly unleashes Mutant Mayhem in New York City, Rocksteady joins the fight on his Chopper Cycle! The cycle speeds down the city streets and Rocksteady launches into action! As the opponent approaches, Rocksteady presses the fin on the side of his Chopper Cycle to launch twin missiles in their direction. His opponent is quickly knocked down and knocked out! Set comes in a package with colorful TMNT Mutant Mayhem movie branding! For ages 4 plus.