
Grendizer, Getter Robo G, Great Mazinger: Decisive Battle! The Great Sea Monster
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
Watch Grendizer, Getter Robo G, Great Mazinger: Decisive Battle! The Great Sea Monster Online Free on Watchseries. 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: ANN
- Genre: Action, Adventure, Animation
- Country: Japan
- Director: Masayuki Akehi
- Cast: Akira Kamiya, Hiroya Ishimaru, Keaton Yamada, Kei Tomiyama, Keiichi Noda, Joji Yanami, Rihoko Yoshida, Hiroshi Otake, Kosei Tomita,

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