He is from a sonic the hedgehog comic and its about sonic continuing his day like he is until he started to fall into a great uncontrollable anger and fear and insanity and he tries to fight for control over in his mind and its caused by this in his different dimension they use something instead using all 7 chaos emeralds they use chaos energy so yeah is he is a different sonic in different universe thats lost his sanity and mind and control and if feels threatened he'll turn into his fleetway form and attack or kill you .