Japan Synopsis
大巨獣ガッパ
“Vast! Hideous! Invincible!”
An expedition in the South Pacific lands on a tropical island where the natives worship the mysterious deity Gappa. An earthquake opens up an underground cavern and a baby reptile is discovered inside. The natives warn the foreigners to leave the hatching alone, but they don't listen and take it back to a zoo in Japan. Soon after, moma and papa Gappa start smashing Tokyo looking for their kidnapped child.
Titles With Overlapping Themes
Films and series that share thematic tags with Gappa, the Triphibian Monster. Number on each card indicates how many keywords overlap.
Other Titles From Nikkatsu Corporation
Horror + Science Fiction in Japan
93 Japan titles in our catalog blend the Horror and Science Fiction genres. Below: the top-rated of them (excluding Gappa, the Triphibian Monster itself).
The 1966–1968 Japan Window
In the crowded 1966-1968 Japan release window, Gappa, the Triphibian Monster sits at #64 of 70. The leaderboard below contextualises its neighbours.
The 1960s Japan Landscape
Catalog density by release year across the 1960s in Japan, 202 titles in total. Highlighted year (yellow) is when Gappa, the Triphibian Monster premiered alongside 20 others.
Position in Catalog
Released alongside 20 other Japan films in 1967.
The 264th Japan title from Japan we index (earliest catalogued entry: 1899).
Our Japan catalog contains 4,579 titles in total (2,908 films).
Audience Engagement
33 audience reviews — more than 53% of Japan films in our index.
Popularity sits at the 55th percentile among Japan films.
Thematic Fingerprint
Tags on Gappa, the Triphibian Monster, grouped by how common each theme is across the full Asian catalog. Rare tags are more distinctive signals.
- tropical island · 5
- giant egg · 4
- research · 2
- matter of life and death · 1
- dinosaur · 22
- photographer · 15
- earthquake · 14
- ship · 7
- japan · 454
- monster · 91
- kaiju · 77
- giant monster · 64
- island · 41
Reception Benchmarks
Ranked #4,318 of 4,579 Japan films indexed here (6th percentile by TMDB audience score).
Rating is -1.6 points below the Japan average of 6.9/10.
Among Japan Horror productions specifically: #295 of 391 (top 75%).
Production Details
| Primary Country | Japan |
|---|---|
| All Production Countries | Japan, United States of America |
| Original Language | Japanese |
| Spoken Languages | English, Japanese |
| Production Companies | Nikkatsu Corporation, Manson International |
| Runtime | 1h 24m |
| Release Date | April 22, 1967 |
| IMDb | tt0061550 |
| Official Site | www.nikkatsu.com |