Gammera the Invincible (1966) is a Horror, Science Fiction, Action film that follows an atomic explosion awakens Gammera, a giant fire breathing turtle monster from his millions of years of hibernation. Currently, you can watch Gammera the Invincible on FlixFling, Amazon Video. Streaming availability may vary by country and platform over time. It has a user rating of 4.9 out of 10 from 32 votes. Fans of horror movies may also want to explore similar titles below.