Sonic the Hedgehog, or just Sonic, is a blue anthropomorphic hedgehog known for his impressive running speed, hailing from an island from Earth called South Island. He is the main protagonist of the long-sucessful Sonic the Hedgehog franchise. Sonic has appeared in some of SuperMarioGlitchy4's videos, and is usually the main protagonist in the Sonic the Derphog sub-series.
He made an appearance telling the viewers that he is Sonic, Sonic the Hedgehog, but then was ran over by Wario's car. He then appears where the (Wacky) Wario Bros wait for the bus, along with Kirby, he then sees Wario and notices that he was the one that ran over him, then battles Wario, he used Chaos Control to slow down Wario, Wario then throws Waluigi and Kirby into Sonic, but misses, but then got ran over by a train, ultimately killing him, he wasn't seen for the rest of the video.