"We commit to the cradle of time the Last Hope, Gamera. May he awaken with the Shadow of Evil, Gyaos."
— Inscription from the obelisk found on Gamera's atoll (Gamera the Guardian of the Universe)


Gamera was created by the ancient civilization of Atlantis thousands of years ago in order to combat their previous creation, Gyaos. Gamera wiped out most of the Gyaos, but Atlantis was completely destroyed in the battle. Gamera was sealed within an atoll and remained dormant until 1995, when three Gyaos appeared in the skies over Japan. Gamera awakened from his long sleep and traveled to Japan to destroy his ancient enemy. Gamera killed two of the Gyaos, but the JSDF interfered with his attempts to destroy the last one, which grew into the larger Super Gyaos. With the help of his human ally Asagi Kusanagi, with whom he was telepathically bonded, Gamera fought Super Gyaos in Tokyo and successfully killed it.