Monster Zero, or King Ghidorah, is an ancient extraterrestrial Titan known for his immense power and malevolent intent. Towering at 521 feet with three heads and massive wings, he emits gravity beams and causes global catastrophes. Ghidorah's goal is to dominate Earth, becoming the Alpha Titan and destroying all rivals, particularly Godzilla. His vicious and strategic nature makes him one of the most fearsome and destructive beings in the Monsterverse.