Sonic the Hedgehog is a video game character. He is a 15-year old blue hedgehog who can run at the speed of sound. By curling into a ball and spinning quickly, he can do a helpful "Spin Attack" which he uses to defeat the villains and save the day. He has been in many games made by the company Sega, but also in television series, books and comics (published in America by Archie Comics). He has many friends, including Miles "Tails" Prower, a two-tailed fox that can fly by spinning his tails very quickly or Knuckles the Echidna (who is strong, and has been in Sonic games since "Sonic the Hedgehog 3"). With them, he fights against his arch nemesis Doctor Eggman, an evil scientist attempting to conquer the world.