Bionic Commando is a video game franchise consisting of an original arcade video game released in 1987 and several later versions and sequels. The games are platform games in which, with two exceptions, the player cannot jump. A bionic arm is used to cross gaps and climb ledges. The player character, Nathan "Rad" Spencer, uses this as a grappling gun/hook to swing, climb and descend through levels. Seven games have been released, from the original 1987 Bionic Commando to 2011's Bionic Commando Rearmed 2. The series is based in an alternate timeline in which Nazism is not completely eradicated following World War II.