According to an official poll, Shadow is the second most popular character in the series, second only to Sonic himself. However, he does what he needs to do to accomplish what he knows to be right. In contrast to Sonic, Shadow is typically portrayed as a tortured, or a renegade who can just as easily serve the forces of evil as those of good. His past was almost a complete mystery until the game Shadow the Hedgehog revealed the events surrounding his creation. Shadow is Sonic's arch-rival yet frenemy and Rouge and Omega's best friend. Since his debut, Shadow has appeared in a multitude of games, television shows, and comic books. Shadow is immortal, however that doesn't mean that he does not feel pain. He was created as the ' Ultimate Lifeform' by Professor Gerald Robotnik.
Shadow the Hedgehog is one of the major characters of the Sonic the Hedgehog video game franchise and Sonic's arch rival.
