Read more about Gyaos at: Wikipedia

Official Site: Kadokawa

, is the name of several daikaiju from Daiei's Gamera film series, introduced in their 1967 production Gamera vs. Gyaos and one of Gamera's most famous opponents. It is the only Gamera foe to appear in the Showa, Heisei, and Millennium Gamera films.

Gyaos resembles a giant cross between a pterosaur and a bat, with a flattened, arrow-shaped head, leathery wings with three claws on each, taloned feet, and a fish-like tail. It has dull blue skin in most incarnations. The Gyaos in Gamera: Guardian of the Universe had a more streamlined appearance, with larger wings and a longer neck, as well as red eyes.

In Gamera vs. Gyaos, Gyaos appeared in Japan from a large cavern, and feasted on blood (principally that of livestock and human beings). Soon, Gamera confronted Gyaos, and after a battle, Gyaos was forced to flee and Gamera was forced into the ocean to recover. It is soon learned that light from the sun causes Gyaos' tissue to shrivel, so the light of the city stadium of Nagoya kept Gyaos at bay. Gamera soon returned to finish Gyaos off and, after a battle in the air, Gyaos cut off his own foot to escape from the sun. The protagonists developed a plan to place artificial blood on a rooftop in Nagoya. The plan was to keep Gyaos drinking the blood for so long that the sun would come up and kill him. But Gyaos proved more cunning than originally thought and used a strange fog attack to protect himself from the sun. The next plan was to lure Gamera to Gyaos' lair in the forest by setting the forest on fire. Gyaos used his fog attack to put out the flames, but Gamera arrived and eventually defeated Gyaos by throwing the beast into a volcano.

Space Gyaos appeared briefly in Gamera vs. Guiron, and quickly finds itself victim of Gamera's titular opponent. In reality, Space Gyaos is simply the Gyaos prop from Gamera vs. Gyaos painted silver. This was done because production crew of the film did not have the time and budget to invest the time of creating another new monster.

Gyaos has not been a contender in any CBUB matches.