UFO Robo Grendizer Anime Details and Episodes A short manga version of the UFO Robo Grendizer anime. Released along the anime series, UFO Robot Grendizer follows the adventures of Duke Fleed, the… Series info Watch free DetailsFormatMangaStatusFinishedScore57/100CountryJapan GenresMechaSci-Fi TagsShounenSuper RobotAliensSpace OperaRevengeGoreKaijuSpace RelatedUFO Robo Grendizer tai Great Mazinger (Adaptation)UFO Robo Grendizer (Adaptation)UFO Robo Grendizer (Alternative)Devilman VS. Hades (Shared Characters)Mazinger Angel (Shared Characters)Grendizer Giga (Alternative)Grendizer U (Adaptation)Super Robot Comic: Mazinger Anthology (Spin-off)Mazin Saga (Shared Characters)Mazinger Angel Z (Shared Characters)Super Robot Retsuden (Shared Characters) RecommendationsMazinger ZGetter RoboMazinger ZGreat MazingerGrendizer Giga CharactersTetsuya Tsurugi (Supporting)Jun Honoo (Supporting)Kouji KabutoBoss (Supporting)Duke Fleed