Compilation of classic games with blue hedgehog Sonic. It includes Mega Drive/Genesis classics like Sonic the Hedgehog, Sonic the Hedgehog 2, Sonic the Hedgehog 3, Sonic 3 & Knuckles, Sonic & Knuckles, Knuckles in Sonic 2, Sonic 3D Blast, Dr. Robotnik's Mean Bean Machine, six Game Gear games and non-Sonic games.