Grendizer: Getter Robo G - Great Mazinger Kessen! Daikaijuu
Original title: グレンダイザー・ゲッターロボＧ・グレートマジンガー 決戦！大海獣
Score: ⭐ 6.49
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Age Rating: PG-13 - Teens 13 or older
Episodes: 1
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Synopsis
A giant sea monster known as "Dragonsaurus" has emerged from out of nowhere, terrorizing the depths of the oceans. Great Mazinger, Grendizer and the Getter Robo G team join forces to combat the new threat. But their task becomes more complicated when Dragonsaurus swallows up Boss Borot and makes its way toward Tokyo. (Source: ANN)