Sonic The Hedgehog

Sonic the Hedgehog is a video game series released by Sega starring and named after its mascot character, Sonic The Hedgehog. The series began in 1991 with the release of Sonic the Hedgehog on the Sega MegaDrive/Genesis, in addition to an 8-bit version of the game for the Master System and Game Gear formats. Sonic was responsible for turning Sega into a leading video game company during the 16-bit era, and his first game soon replaced Altered Beast as the default pack-in game for the MegaDrive/Genesis in North America and Europe. The series has sold 150 million units worldwide as of 2010.