Shadow Hedgehog, often referred to as 'Super Shadow' when transformed, is a major character in the Sonic the Hedgehog series. Created as the 'Ultimate Lifeform,' he possesses incredible speed and power, rivaling Sonic himself. In his Super Shadow form, empowered by the Chaos Emeralds, Shadow gains enhanced abilities and can fly. He is a complex character, serving as both a rival and ally to Sonic, and is known for his brooding personality, strong sense of justice, and mysterious past.