Teenage Mutant Ninja Turtles: Dimension X Assault is a stand-alone handheld video game by Tiger Electronics, released in 1995. It is the only video game to take a character and design from the infamous "Red Sky" episodes of the 1987 Teenage Mutant Ninja Turtles series. The game's chief villain is Berserko, who has a plan to destroy the Earth as revenge on the Ninja Turtles. He utilizes "Gamma Bombs", which must be deactivated at the end of every level (save for the final stage), and finally appears in his "Annihilater" (sic) vehicle as the final boss.