Godzilla vs. Megalon

An inventor creates a humanoid robot named Jet Jaguar that is seized by the undersea nation of Seatopia. Using Jet Jaguar as a guide, the Seatopians send Megalon as vengeance for the nuclear tests that have devastated their society.

Cast:Katsuhiko Sasaki , Hiroyuki Kawase , Yutaka Hayashi , Robert Dunham , Kôtarô Tomita , Ulf Ôtsuki , Gentaro Nakajima , Sakyo Mikami , Fumiyo Ikeda , Kanta Mori , Shinji Takagi , Hideto Odachi , Tsugutoshi Komada , Kenpachirô Satsuma , Ralph Jesser , Eisuke Nakanishi , Teruo Nigaki , Yû Sekita