Sonic.EXE looks almost identical to Sonic (specifically Classic), but has notable differences. Overall, Sonic.EXE has darker blue fur and more saturated or paler skin. The sclera of his eyes are black, while his "pupils" are small dots, with the addition of a mysterious semblance of Sonic.EXE which is the constant production or excretion of blood in his eyes that oozes into his lower eyelids, leaving a birthmark that hurts and stings his eyes. he will kill anyone he meets with his dark matter