Metal Sonic Hyperdrive is a heavy modification of Sonic the Hedgehog (1991) by Darkon360/Lone Devil for the Sega Genesis. with brand new Zones, Sonic CD style gameplay, music, playable characters, and gameplay modes. Starring Metal Sonic, taking Sonic's role as the main protagonist to stop Dr'Robotnik's greatest inventions yet. Also starring special guests such as Kirby, and Somari.