The sequel toNagai Gou's anime/mangaMazinger Z. Great Mazinger(グレートマジンガー,Gurēto Majingā) is ascience fictionmanga andsuper robotmechaanime that features anew robotthat is an improved version of the originalMazinger. It was aired on Japanese television in 1974, immediately following the end of the first Mazinger series, and ran for 56 episodes.