An atomic explosion awakens Gammera, a giant fire breathing turtle monster from his millions of years of hibernation.
You can now watch Gammera the Invincible online on the following streaming providers in the United States.
| Writing | Richard Kraft | Writer |
| Directing | Noriaki Yuasa | Director |
| Writing | Nisan Takahashi | Screenplay |
| Directing | Sandy Howard | Director |
| Art | Hank Aldrich | Art Direction |
| Production | Masaichi Nagata | Producer |
| Crew | Yonesaburo Tsukiji | Special Effects |
| Production | Robert Baron | Associate Producer |
| Camera | Julian C. Townsend | Director of Photography |
| Camera | Nobuo Munekawa | Director of Photography |
| Production | Ken Barnett | Executive Producer |
