M.EXE starts out looking like a taller, more demented version of Mario with pointy ears, unkempt hair and mustache, black eyes with glowing red pupils and blood leaking out of them, and a mouth full of sharp teeth.
He's the opponent of the Story Mode, facing off against either Sonic.Exe or Boyfriend. M.EXE is the mod creator's take on Mario.Exe and the main antagonist of Nightmare Of The Mushroom Kingdom.
