Sonic the Hedgehog Megamix (commonly shortened to Sonic Megamix) is a work-in-progress multiperson disassembly modification of the original Sonic the Hedgehog videogame for the Sega Mega Drive/Genesis, developed by Team Megamix and more recently moved to the Sega Mega-CD.

The game features the ability to play as one of five different characters: Sonic the Hedgehog, Mighty the Armadillo, Shadow the Hedgehog, Miles "Tails" Prower, and Knuckles the Echidna. It is an extensive reworking of the original game, featuring new art, music, abilities, layouts, and other things.

CyanTheGamerhog01 collects all Chaos Emeralds and abandons Dr. Eggman's plans of world domination in record time.

We also have movies in Sonic the Hedgehog, Sonic the Hedgehog 2, Sonic the Hedgehog CD and Sonic 3 & Knuckles.

The second encode link leads to a camhacked version. But don't expect the videos where Sonic is visible offscreen to make any more sense than the original ones!