Gyaos (Godzilla: New Age of Monsters)

The Gyaos are giant bat-like Kaiju who were the main antagonists of the first two episodes of Guardian of the Universe and one made an apperance in Godzilla: New Age of Monsters.

Appearance
The Gyaos takes the appearance of the 1995 Gyaos and the 1999 Gyaos. The Gyaos that appears in Godzilla: New Age of Monsters retains the appearence of the original Gyaos.

Reproduction
The Gyaos rapidily lay their eggs as their young hatch and quickly grow.

Origin
Like Gamera, the Gyaos were monsters created by the Atlanteans as bio weapons, but they turned against their own creators as many of them were wipe out by the original Gameras as the surviving Gamera and Gyaos laid dormant til the 21st Century. In Godzilla: New Age of Monsters, Gyaos is a vampire bat-like creature that laid dormant in a large cave.

Guardian of the Universe
In the first and second episodes, three Gyaos were seen attacking and eating people on an island village and lured by the Japanese goverment into a trap at a baseball stadium. gamera shows up and kills one of them as the other two escape. the second one gets killed by Gamera as the third destroy some jets and turns Tokyo Tower into it's nest as it change it's gender from male to female while it lays eggs. Gamera shows up, destroys the eggs and engaged a battle with the Super Gyaos as they take their final battle at a oil refinery while Gamera destroy the Super Gyaos with a fire blast to kill it. In the Revenge of Irys arc, it's revealed that the monster Irys is a mutated Gyaos created by the Atlanteans.

Godzilla: New Age of Monsters
One episode of season 2 features a Gyaos that was different than the ones created by the Atlanteans. It was a prehistoric vampire bat-like monster that been living dormant in a large cave until it was awoken during an volcano eruption.

Trivia

 * The Hyper Gyaos don't appear in the series