Devil Goat

Devil Goat is the true main antagonist in Goat Simulator.

How to unlock him
Go on Goatville, and try going near the Coffee Stain house, into the hills. You will start seeing torches and you go across a satanic star. You need to bring 5 humans to the star, or if you like, use the Queen Goat and summon 5 goats. It will start to be glitchy and you don't turn into him (In Mobile), but you unlocked him in the inventory.

Powers
When you press pow, it will cause the music to stop and a red smoke appears. Any nearby character or object in the zone of the smoke will start going right in the smoke by the powerfuel forces. When on ragdoll mode, the kinetic powers will cause the goat to fly like crazy, or even fly out of the world.

Bugs

 * Mixing with the Robot Goat will make the mutator too unstable, since when you headbutt explosives or land on fireworks with the Robot, it will glitch out of the world.
 * The jetpack combination is so powerful, and unpredictable.
 * Mixing with Tornado Goat will make it more powerful, and the power increases with the tertiary mutator, Repulsive Goat.
 * Mixing with the Excaligoat from Goat MMO will increase the recoil of its attacks and odd things happen.
 * When climbing near out of the ladder in the mobile version at the Buck To School map right in the Mason room, it could instantly fly right into the top, out of the world.

Trivia

 * It ressembles a Jacob Sheep, due to having 6 horns.
 * The reason why it's the main antagonist is because it's a devil, which is the most dangerous threat.