Sonic the Hedgehog

Artist Naoto Ōshima, designer Hirokazu Yasuhara and programmer Yuji Naka are generally credited with the creation of the character,[7] a blue-haired, mostly blue-skinned 15-year-old anthropomorphic hedgehog, who has the ability to run faster than the speed of sound[8] and the ability to curl up into a ball, primarily to attack enemies. This is a major part of the gameplay of the series.
Sonic the Hedgehog (ソニック・ザ・ヘッジホッグ ,Sonikku za Hejjihoggu?), trademarked Sonic The Hedgehog,[2] is a video game character and the protagonist of the eponymous video game series released by Sega, as well as in numerous spin-off comics, cartoons and books. The first game in the franchise was released on June 23, 1991, in order to provide Sega with a mascot to rival Nintendo's flagship character Mario (see 1991 in video gaming).[3][4] Since then, Sonic has become one of the world's best-known video game characters, with his series having sold 50 million copies.[5] In 2005, Sonic was one of the first game character inductees into the Walk of Game, alongside Mario and Link.
from wikipedia