Unique among the characters in Friday Night Funkin', Monster is a far cry from the humanoid, fairly cutesy characters in the game, being a gangly, nightmarish abomination consisting of a yellow lemon-like head with large, red eyes, a slit mouth, and large humanoid teeth, a red neck, and a black body with two fingers and toes. In Week 5, he also wears a tattered "Santa hat", presumably taken from the mall Santa being held hostage by Daddy Dearest.