Exetior

Exetior is the main antagonist of the Sonic.EXE: Nightmare series, debuting as the titular main antagonist of Sonic.exe: Nightmare Beginning, as well as one of the two of Sally.exe: Continue Nightmare, alongside the Highest, Stich-Lite.Exetior (also known as Sonic.exe) is the titular main antagonist of the Sonic.exe: Nightmare Version series. He appears as the titular main antagonist of Sonic.exe: Nightmare Beginning (as well as its upcoming remake), one of the two main antagonists (alongside Stich-Lite) of Sally.exe: Continued Nightmare - Eye of Three, and one of the main protagonist villains of Nightmare Shorts. Aside from the Nightmare series he appears as a minor antagonist in Sonic.exe: The Spirits of Hell.