the version was developed by christian whitehead and published by sega. Sonic the hedgehog cd, also known as sonic cd classic, is an enhanced remaster of the original sonic the hedgehog cd released for the sega cd. they control sonic and tails, who attempt to retrieve the chaos emeralds to stop the evil doctor robotnik from relaunching his space station, the death egg, after it crash lands on a. Sonic the hedgehog 3 is a 1994 platform game developed and published by sega.like previous sonic games, players traverse side scrolling levels at high speeds while collecting rings and defeating enemies. Sonic the hedgehog cd is a 1993 platform video game for the sega cd developed and published by sega.the story follows sonic the hedgehog as he attempts to save an extraterrestrial body, little planet, from doctor robotnik.as a sonic the hedgehog series platformer, sonic runs and jumps through several themed levels while collecting rings and defeating robots.
