Sonic.OMT, better known as simply OMT, is the titular main antagonist of the Sonic.EXE: One More Time/One More Round/One Last Round fangame series. He is the original Sonic.EXE, being mysterious demonic being who has taken the form of Sonic the Hedgehog who tortures and kills others for his own amusement, after having been infected by a computer virus, making him more powerful, insane and terrifying.