This creature had green, thick skin that was covered in warts and scaled. His squid head had long, thick tentacles
surrounding it that could crush any human that attempted to attack it.
The Cthulhu had giant bat like wings that unfolded out of it's back and it's fee were similar to that of eagle talons which grabs people and shreds them apart.
Cthulhu are blood thirsty beasts that have the ability to invade peoples dreams and control them with its mind.
This monster was the priest of an ancient race of aliens called "The Great Old Ones." and the story goes once every age, the underwater city [called R'lyeh] surfaces and with this, it's high priest who is out for bloodshed and violence.
Once it surfaces, the Cthulhu controls all of the weak people that he can and causes them to preform human sacrifices to prove their loyalty to him.