Rock Em Sock Em Robots

Rock ‘Em Sock ‘Em Robots is a two-player action toy and game designed by Marvin Glass and Associates and was first manufactured by the Marx toy company in 1964. It features two dueling robot boxers, Red Rocker and Blue Bomber, mechanically manipulated by the players, and the game is won when one player knocks the head off of the opponent. The 2000s version of the game by Mattel features physically smaller robots. (Wikipedia)