From Banpresto!

Ultraman Gaia is the main ultra hero in the Ultraman Gaia series. Gaia is the manifestation of the will of the Earth, bonding with Gamu Takayama to fight against the monsters and invaders that threaten Earth. Ultraman Gaia's supreme version is a transformation when Ultraman Gaia uses Agul's power to the maximum which increases his physique dramatically.