This ROM hack by Team Megamix revises Sonic the Hedgehog for Sega Genesis. "~Sonic - Mega Mix" indicates a connection to the Megamix series, perhaps borrowing assets or ideas. The hack will likely feature redesigned levels, changed gameplay, or perhaps added features building on the original game.  It is built upon Sega's original game engine but demonstrates the creativity and efforts of the ROM hacking community.  The hack is not affiliated with Sega and is created by independent developers.

Sonic the Hedgehog (USA, Europe) [Hack by Team Megamix v3.0] (~Sonic - Mega Mix)

Sonic the Hedgehog (USA, Europe) [Hack by Puto v1.1] (~Sonic Remastered)