Japan Synopsis
グレンダイザー・ゲッターロボＧ・グレートマジンガー 決戦！大海獣
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
The 1975–1977 Japan Window
51 Japan films released in this three-year window, ranked here by audience rating. Grendizer, Getter Robo G, Great Mazinger: Decisive Battle! The Great Sea Monster sits at position #37.
Titles With Overlapping Themes
Films and series that share thematic tags with Grendizer, Getter Robo G, Great Mazinger: Decisive Battle! The Great Sea Monster. Number on each card indicates how many keywords overlap.
5 sharedGreat Mazinger vs. Getter Robo G: The Great Space Encounter
★ 5.8 · Japan
5 sharedGreat Mazinger vs. Getter Robo
★ 6.2 · Japan
4 sharedMazinger Z vs. Devilman
★ 5.6 · Japan
4 sharedUFO Robot Grendizer vs. Great Mazinger
★ 5.9 · Japan
4 sharedNinpuu Sentai Hurricaneger vs. Gaoranger
★ 7.3 · Japan
4 sharedNinpuu Sentai Hurricaneger: 10 YEARS AFTER
★ 5.5 · Japan
Other Titles From Dynamic Planning
The 1970s Japan Landscape
Catalog density by release year in the 1970s. Highlighted year (yellow) is when Grendizer, Getter Robo G, Great Mazinger: Decisive Battle! The Great Sea Monster premiered. 197 total titles in this decade from Japan.
Reception Benchmarks
Ranked #3,741 of 4,579 Japan films indexed here (18th percentile by TMDB audience score).
Rating is -0.8 points below the Japan average of 6.9/10.
Among Japan Action productions specifically: #1,457 of 1,714 (top 85%).
Production Details
| Primary Country | Japan |
|---|---|
| Original Language | Japanese |
| Production Companies | Dynamic Planning, Toei Animation |
| Runtime | 31m |
| Release Date | July 18, 1976 |
| IMDb | tt0422360 |