Sonic.EXE is the main antihero of the Friday Night Funkin game mod by MarStarBro Friday Night Funkin': Vs. Sonic.EXE. Sonic.EXE is also the main antihero of his titular creepypasta. Visually Sonic.EXE looks like a Sonic from Sega but has some noteworthy differences. He has darker fur, he is edgier, his skin is paler, and sometimes he is seen with claws, and Sonic.EXE has pitch black eyes. Sometimes people describe Sonic.EXE as a demon possessing the Sonics body, but really Sonic and Sonic.EXE are two different entities. Furthermore, Sonic.EXE actually idolizes Sonic to the point of obsession. A fanart FNF progress bar for YouTube with Sonic.EXE.