Grendizer, Getter Robo G, Great Mazinger: Decisive Battle! The Great Sea Monster 1976
6.1/10 by 19 users
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
- Released: 1976-07-18
- Runtime: 31 minutes
- Genre: Action, Adventure, Animation
- Stars: Akira Kamiya, Hiroya Ishimaru, Keaton Yamada, Kei Tomiyama, Keiichi Noda
- Director: Go Nagai, Masayuki Akehi, Susumu Takaku, Chiaki Imada
