Grendizer, Getter Robo G, Great Mazinger: Kessen! Daikaijuu_
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
Starring
Akira Kamiya, Hiroya Ishimaru, Keaton Yamada
Updated Feb 16, 2026
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Cast
Akira Kamiya →
Akira Kamiya stars as Ryo Nagare in Grendizer, Getter Robo G, Great Mazinger: Kessen! Daikaijuu.
Akira Kamiya →
Year context
Grendizer, Getter Robo G, Great Mazinger: Kessen! Daikaijuu was released 50 years ago in 1976.
Overview
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 Rob...
Grendizer, Getter Robo G, Great Mazinger: Kessen! Daikaijuu is a Action, Adventure, Animation film with a runtime of 0h 31m.
CAST (9)
Akira 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
RY
Rihoko Yoshida
Michiru Saotome
Hiroshi Otake
Boss
Kosei Tomita
Dr. Saotome
DETAILS
FREQUENTLY ASKED QUESTIONS
What is Grendizer, Getter Robo G, Great Mazinger: Kessen! Daikaijuu about?
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
How long is Grendizer, Getter Robo G, Great Mazinger: Kessen! Daikaijuu?
Grendizer, Getter Robo G, Great Mazinger: Kessen! Daikaijuu has a runtime of 31 minutes (0h 31m).
Who stars in Grendizer, Getter Robo G, Great Mazinger: Kessen! Daikaijuu?
The cast of Grendizer, Getter Robo G, Great Mazinger: Kessen! Daikaijuu includes Akira Kamiya, Hiroya Ishimaru, Keaton Yamada, Kei Tomiyama, Keiichi Noda.
What is the rating of Grendizer, Getter Robo G, Great Mazinger: Kessen! Daikaijuu?
Grendizer, Getter Robo G, Great Mazinger: Kessen! Daikaijuu has a rating of 6.0 out of 10 based on 21 votes on TMDB.
GENRES (3)
Action
Adventure
Animation