Grendizer: Getter Robo G - Great Mazinger Kessen! Daikaijuu

Other name: 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

Genres: Action, Mecha, Sci-Fi, Shounen

Status: Completed

Summary:

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.