Gamera vs. Barugon

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. Character Keisuke Hirata (Kōjirō Hongō) joins forces with Karen to stop the creature, which attacks Osaka by emitting a destructive rainbow ray and freezing spray. In the end, Gamera thaws out and drowns Barugon in Lake Biwa, while Keisuke comes to terms with his role in Onodera's betrayal.