His fur is darker, and his arms seem to be 'softer', and he smiles abnormally with his mouth being totally dark. Sonic.EXE is extremely similar to Classic Sonic, but with notable differences. He's also an upcoming opponent of Final Escape and was planned to be a playable character in Slaybells before being replaced by Grimbo.
He is the main opponent of Too Slow, You Can't Run, Triple Trouble. Sonic.EXE is the central antagonist of Story Mode, and his debuting creepypasta in 2011 along with a duology indie game. “ I don’t think I’ve ever played glitchy or hacked games before, though I don’t think I want to play any after the experience I had… ”