Horrifying Sweaty One-Armed Monstrosity

The Horrifying Sweaty One-Armed Monstrosity, is a minor antagonist in the first part of the Gravity Falls series finally, ' Weirdmageddon". He was voiced by Louis CK.

appearance
He a gigantic human head-like monster with drops of sweat around his face and reddest brown hairs and eyebrows with a large arm on the top of his head.

History
While his origins remain a mystery, the Monstrosity is first seen during the third day of the event called Weirdmageddon, when Dipper is looking for both his sister and Uncle Stan and thinks their hiding in the town mall, the One-Armed Monstrosity passes by, as Dipper quickly runs towards the mall as feast as he could, however the Monstrosity notices him and asks if he'll go inside his mouth, as he gets closer, Dipper barely makes it through the doors in time as the Monstrosity tries to get him.

While Dipper and Wendy were on the road running from Li' Gideon's henchmen, they nearly get caught by the Monstrosity's arm, he then grabs one of the prisoners then eats him and the entire car too.

He was last seen during the credits where he was still asking if anyone wanted to go inside his mouth, then talks to an off-screen woman only to hear her scream and run away, then sees a bird which he mistakes for a man, the Monstrosity doesn't care anymore then decides to leave and call his mother.