Grendizer: Getter Robo G - Great Mazinger Kessen! Daikaijuu

Grendizer: Getter Robo G - Great Mazinger Kessen! Daikaijuu | 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 | Great Mazinger Decisive Battle! The Great Sea Monster | L'attaque du Dragosaure

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 towards Tokyo. (Source: Anime News Network)show more