Gamera

Gamera is a fictional monster, or kaiju, originating from a series of Japanese films. Debuting in the 1965 film Gamera, the Giant Monster, the character and the first film were intended to compete with the success of Toho's Godzilla.

Gamera is depicted as a giant, flying, fire-breathing, prehistoric turtle. In the first film, Gamera is portrayed as aggressive and destructive, though he also saves a child. As the films progressed, Gamera took on a more benevolent role, becoming a protector of humanity especially children, nature, and the Earth from extraterrestrial races and other giant monsters.

(Source: Wikipedia)