Sonic the Hedgehog

Sonic the Hedgehog was the first in Sega's Sonic the Hedgehog series. Sonic was intended to Sega's mascot to compete with Nintendo's Mario. The game and character were specifically designed to demonstrate the processing speed of the Sega Genesis.

Since its release it has been ported to many other systems and compilations, including Sonic Jam, Sega Smash Pack: Volume 1, Sonic Mega Collection (and Sonic Mega Collection Plus) and, most recently, the Sega Genesis Collection. It is also available via the GameTap and Wii Virtual Console download services.