Machine Robo: Revenge of Cronos(マシンロボ クロノスの大逆襲Machine Robo: Chronos no Dai Gyakushū) is a Japanese anime television series produced by Ashi Productions. It ran on TV Tokyo from July 3, 1986 through May 28, 1987. A large portion of the Machine Robo toy-line was exported and sold by Tonka in America as GoBots and Rock Lords. To date, only 15 episodes of the series have officially been released with English subtitles on three DVDs by Central Park Media.