E-123 Omega

E-123 Omega, or, technically, E-123 Ω, is a fictional robot from the Sonic the Hedgehog video game universe, which first appeared in Sonic Heroes. He bears a strong resemblance to another character in the series, E-102 Gamma (a possible design inspiration), who is part of the same robotics production line in the series. In the games, he was created by Dr. Eggman, and is out to destroy him due to lack of respect and lust for revenge.