Giant Robo Anime Details and Episodes An adaptation of Giant Robo THE ANIMATION: Chikyuu ga Seishi Suru Hi OVA, serialized in magazine Comic GENKi. Series info Watch free DetailsFormatMangaStatusFinishedSourceAnimeCountryJapan GenresActionMechaSci-Fi TagsSuper RobotConspiracyShounen RelatedGiant Robo: Chikyuu no Moetsukiru Hi (Alternative)Giant Robo THE ANIMATION: Chikyuu ga Seishi Suru Hi (Source)