Hedgehog Dude

Hedgehog Dude is a deuteragonist in Sonic Ultimate and the show's comedy themed spin-off Sonic Ultimate: Ultimate Hilarity. He has several disorders, post-traumatic stress disorder, disassociative identity disorder, and Dunning-Kruger's effect, which would explain his low IQ, however, this could be the result of his evil self being released frequently in war.

The W.A.R.
Hedgehog Dude used to be in the W.A.R. (Weaponized Animal Regiment) for a few years. Hedgehog Dude experienced traumatic/traumatizing events through his years of being in the war. Soon enough, Hedgehog Dude started to rocket to insanity, he would constantly twitch for split seconds and during these twitches, he appeared to have no eyes, but a tiny white pinprick dot-like pupil in the left eye. However, this was not noticed fully until the newspaper received reported unsolved The Lake of Tears.

Later in the W.A.R., Hedgehog Dude's evil self was unleashed during a battle, where his brother Scratch was nearly killed, when he jumped in front of a bullet, intended for Hedgehog Dude. This had him severely injured, ad then Hedgehog Dude's essentially secret dark side was no longer secret, and he fought his enemy to the death. They came at each other with a knife and his ear was cut off, the other guy's face was cut up.Then Hedgehog Dude launched dynamite into his forehead, killing him for good.

Trivia

 * Hedgehog Dude has showed over five signs of not feeling pain, he may have Congenital analgesia disorder, a rare disorder where you have never felt or cannot feel pain.
 * It is weird that Hedgehog Dude is not smart, considering he become one of the best quarterbacks in history when he played football, as they are the smartest guy on the field. It could he only has signs of competence in sports.
 * Hedgehog Dude is also one of the best athletes of all-time. In basketball, he has been known to dunk from places that are impossible for a human being to dunk from. He has dunked from the free throw line (foot behing the line), the 3-pt line, and even halfcourt. He is one of few players to dunk from the free throw line in an NBA game. And when he played basketball, he wore No. 23 for the Chicago Bulls.