On June 23, 1991, the world met Sonic the Hedgehog for the first time. A titular character of the Sonic the Hedgehog game series and Sega's mascot. Sonic is an anthropomorphic hedgehog born with the ability to run faster than the speed of sound, and he possesses lightning-fast reflexes. Sonic was born on Christmas Island but at an early age, he abandoned his home to seek dangers and adventures. Sonic is using his abilities to defend the world from evil and his nemesis, Dr. Eggman. A fanart custom progress bar with Sonic the Hedgehog for YouTube.