Mogu

Mogu (also known as Mog) is a creature from the unmade movie The Return of King Ghidorah. Not much is known about him except that he can fly and fire some type of projectile attack from his mouth. Based on concept art (see below), Mogu bears resemblance to a dragon hinting that he may be related to Ghidorah. The creature also appears to have a sharp tail, that may be used as a weapon, aswell as razor sharp claws, and a crest of spikes.