He killed all his friends, he is sick, evil, almost everything bad you can think of. Credit to the owner of this image and the creator of the creepypasta, Sonic.EXE! He claims, he is god, he cant ever feel the feeling called fear

You stressed Sonic and put him under distress, he accidentally activated all 7 chaos emeralds and now he is Fleetway!!!! Yellow hedgehog with his spikes up, he is a human with hedgehog features, basically. He originates from Sonic The Hedgehog. He loves chaos, he likes destroying things. -- From Sonic Comics

You stumbled across Shadow The Hedgehog! Explaining is down here: Shadow The Hedgehog is a black humanoid hedgehog with red lines on his spines or spikes. He claims he is the ultimate life form. End of explaining Put any character you want to, Have fun!