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 · Trending anime · Airing schedule FormatMangaStatusFinishedSourceAnimeCountryJapan Action · Mecha · Sci-Fi Super Robot · Conspiracy · Shounen Giant Robo: Chikyuu no Moetsukiru Hi (Alternative) · Giant Robo THE ANIMATION: Chikyuu ga Seishi Suru Hi (Source)