Cthulhu

Cthulhu's appearance is that of a colossal humanoid entity possessing both anthropoidic and cephalopodic qualities. He - or rather it - has an upper body similar to a man, but possesses narrow, webbed wings upon its back and its arms and legs end with clawed digits. The most defining feature of Cthulhu is its head, which closely resembles an octopus. The head is mostly a large, bulbous, pulsating sac, and numerous writhing tentacles sprout from where one would expect a mouth to be. Cthulhu's height reaches hundreds of metres tall, but it is capable of altering its size and shape at will, being anywhere between the size of a man to the size of a continent.