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TMDb
6.1
Grendizer, Getter Robo G, Great Mazinger: Decisive Battle! The Great Sea Monster
PG
18 Jul 1976
0 hr 31 mins
Action
Adventure
Animation
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
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Ryo Nagare
Kôji Kabuto
Hayato Jin
Daisuke Umon / Duke Fleed
Tetsuya Tsurugi
Dr. Umon / Professor Yumi
Michiru Saotome
Dr. Saotome
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