Motorcross racer Takuya Yamashiro battles the evil forces of Professor Monster and his Iron Cross Army as the superhero Spider-Man, aided by the transforming mecha Leopardon.

To fight against the evil Iron Cross Army, led by the space emperor Professor Monster, a daredevil motorcyclist transforms into the famous Marvel Superhero, with a racecar and giant transforming robot at his disposal.—John Cassidy <[email protected]>