7.2 1976 UFO Robot Grendizer vs. Great Mazinger Action, Adventure, Animation, Science Fiction UFO Robot Grendizer vs. Great Mazinger IMDb: 7.2 1976 24 min Alien invaders take over Great Mazinger who is at the entrance of a museum next to Mazinger Z as symbols of peace. Grendizer fights the evil ... ActionAdventureAnimationScience Fiction
