Both his hands are capable of turning into weapons, notably, a chainsaw, a pick, a small blade, and a long claw.His poses show that he is able to control this substance, from changing its color to black, changing his face into a smiley (up), to wholly taking over him (right), to even morphing into a pick (down).

His left arm resembles a spring and is connected to his red microphone while his left leg is seen dripping and wet from the strange substance. Minus Sonic.exe's V2 appearance is the same but his shoulderpads are smaller and has less fur on his arms while his V1 appearance is very different where he is akin to someone who got the Corruption with his legs, feet, and arms somewhat assimilated with his right missing. On his up pose, he is seen holding a Madness Combat grunt with purple frills. His down pose shifts his left hand into a large blade. His body is also littered with black patches, each having a red eye, even on his purplish pick hand.

In Triple Trouble, he gains his iconic crystallizing purple spines on his head and back and his fur color is that of his original icon. This is evident as his poses show his right hand morphing into a chainsaw (up) and a long claw (right). His left arm is now an pick with a dark red eye on it, while his right arm stays the same but his pointer finger slowly morphs into a weapon. In You Can't Run, he becomes bigger and his belly now has a hole filled with small white eyes. His left hand is also capable of changing form into weapons, with a chainsaw for his up pose, and a pick for his left hand. His mic also turns completely purple for his left and up poses. He wears a dark gray trenchcoat with red horn-like shoulderpads, ripped crimson fingerless gloves exposing all his fingers, a red mic with purple wings, handle, and a red glowing eye at the top, and metal crimson shoes with two spikes on them. He has blue fur and a teal belly, a large head that resembles his icon with large black eyes and small red pupils, and fuzzy fur on his arms. Minus Sonic.exe is a minus version of Sonic.exe. Sonic.EXE is the central antagonist, and currently the only story mode antagonist of the mod, as well as for the main source material of his titular creepypasta.

Sonic.exe horror game