Sonic the Hedgehog is the title character and protagonist of the Sonic the Hedgehog series released by Sega, as well as numerous spin-off comics, five animated shows, and an animated OVA.

Sonic is a blue anthropomorphic hedgehog who has the ability to run at supersonic speeds and the ability to curl into a ball, primarily to attack enemies.
The first game was released on June 23, 1991.