

Grendizer, Getter Robo G, Great Mazinger: Decisive Battle! The Great Sea Monster
Visit website6.0/10 • 20
1976-07-18 • 0h 31m
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
- Directors
- Masayuki Akehi

Grendizer, Getter Robo G, Great Mazinger: Decisive Battle! The Great Sea Monster
Visit website1976-07-18 • 0h 31m
6.0/10 • 20
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
- Directors
- Masayuki Akehi
Top Billed Cast
View CreditsAkira Kamiya
Ryo Nagare
Hiroya Ishimaru
Kôji Kabuto
Keaton Yamada
Hayato Jin
Kei Tomiyama
Daisuke Umon / Duke Fleed
Keiichi Noda
Tetsuya Tsurugi
Joji Yanami
Dr. Umon / Professor Yumi
Rihoko Yoshida
Michiru Saotome
Hiroshi Ôtake
Boss
Kosei Tomita
Dr. Saotome
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- Status
- Released
- Original Language
- Japanese
- Budget
- --
- Revenue
- --
- Keywords
- giant monstermechagiant robotkaijusuper robotmazingergetter robo