Shadow the Hedgehog is the one and only Ultimate Life Form, an immortal hedgehog able to harness chaos energy created by Professor Gerald Robotnik with DNA from Black Doom.<br /><br />He's had many enemies, such as Dr. Eggman, Black Doom, Infinite, and Mephiles the Dark. Not to mention a rivalry with Sonic the Hedgehog that began as hostile before becoming more friendly.<br /><br />Footage: Sonic the Hedgehog (2006), Sonic Forces, Episode Shadow, Sonix X Shadow Generations, Sonic X Shadow Generations: Dark Beginnings<br /><br />Song: Who I Am (Original Studio Version)<br />Artist: Magna-Fi<br />