Bakugan: Galaxy Sentai (or Galaxy Squadron, since sentai (戦隊) is the kanji for "squadron, taskforce") is possibly the "other" fifth season of Bakugan, set at the same time during Bakugan: Tech Brawlers. It is considered the third arc of Bakugan: Mechtanium Surge because it features Bakugan that have appeared after the series (e.g. the BakuBlasters).