Sonic the Hedgehog is the titular main protagonist of the Sonic the Hedgehog series and Sega's mascot. He is an anthropomorphic hedgehog born with the ability to run faster than the speed of sound, hence his name. As his species implies, Sonic can also roll up into a concussive ball, primarily to attack enemies. Born on Christmas Island, Sonic abandoned his home at an early age to persue danger and adventures. Becoming a carefree adventurer, he has spent most of his life traveling around the world and far beyond, usually in his beloved Tornado with his best friend, Tails, as his sidekick. A free-spirited and fun-loving adventurer, he has used his abilities to defend his world and those far beyond from the forces of evil, especially his arch-nemesis, Dr. Eggman, and his empire. During his many adventures, Sonic has traveled from the ends of the world to the far reaches of space and time, facing countless trials that have tested him to the fullest, earning him many titles, allies, and the scorns of several foes. Well-known for his legendary attitude and somewhat short temper, yet strong sense of justice, compassion, and love for freedom and adventure, Sonic's countless victories over the villains he has faced and his extraordinary set of abilities both have given him somewhat of a celebrity status, having many fans who yearn for his cool lifestyle. However, he does not care about that at all and continues to run freely to this day.