Gamera escapes from his rocket enclosure and makes his way back to Earth as a giant opal from New Guinea is brought back to Japan. The opal is discovered to have been an egg that births a new monster called Barugon. The creature attacks the city of Osaka by emitting a destructive rainbow ray from his back, along with a freezing spray capable of incapacitating Gamera.

Keisuke Hirata

Karen

Kawajiri

Dr. Sato

Onodera

Ichiro Hirata

Dr. Matsushita

Self-Defense Force General

Onodera's Lover

Governor of Osaka

Awaji Maru Captain
April 17, 1966

Keisuke Hirata

Karen

Kawajiri

Dr. Sato

Onodera

Ichiro Hirata

Dr. Matsushita

Self-Defense Force General

Onodera's Lover

Governor of Osaka

Awaji Maru Captain

