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 thre...
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...
Akira Kamiya, Hiroya Ishimaru, Keaton Yamada, Kei Tomiyama, Keiichi Noda appear in Grendizer, Getter Robo G, Great Mazinger: Decisive Battle! The Great Sea Monster.
Grendizer, Getter Robo G, Great Mazinger: Decisive Battle! The Great Sea Monster is listed under Action, Adventure, Animation.
Grendizer, Getter Robo G, Great Mazinger: Decisive Battle! The Great Sea Monster has a runtime of 31 minutes.
Grendizer, Getter Robo G, Great Mazinger: Decisive Battle! The Great Sea Monster was released in 1976.
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