Sonic the Hedgehog is a video game series and media franchise created by the Japanese developers Yuji Naka, Naoto Ohshima, and Hirokazu Yasuhara for Sega. The franchise follows Sonic, an anthropomorphic blue hedgehog who battles the evil Doctor Eggman, a mad scientist. The main Sonic the Hedgehog games are platformers mostly developed by Sonic Team; other games, developed by various studios, include spin-offs in the racing, fighting, party and sports genres. The franchise also incorporates printed media, animations, feature films, and merchandise.
Sonic the Hedgehog co-creators: programmer Yuji Naka (left) and artist Naoto Ohshima (right) with a costume of the titular character (center)
The original Sonic the Hedgehog was released on June 23, 1991, for the Sega Genesis, boosting Genesis sales dramatically.
Hirokazu Yasuhara (pictured in 2018) designed most of the Genesis Sonic games.
Few Sonic games were released for the Saturn. The cancellation of Sonic X-treme is considered a significant factor in the Saturn's commercial failure.
Yuji Naka , credited in some games as YU2, is a former Japanese video game programmer, designer and producer. He is the co-creator of the Sonic the Hedgehog series and was the president of Sonic Team at Sega until his departure in 2006.
Naka in 2015
Naka during the 2008 Tokyo Game Show