Sonic the Hedgehog Megamix (commonly shortened to Sonic Megamix) is a work-in-progress of the original Sonic the Hedgehog videogame for the Sega Mega Drive, 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 : 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. Fourth Act - You can see in this run of levels such as Sunny Shores, Dark Fortress, City Outskirts, Misty Maze, Starry Night and Metallic Base. Sunny Shores, Dark Fortress and City Outskirts are possible to be beating. But Misty Maze and Metallic Base are to be beating without Debug Mode. But that was very hack which hasn't been updated for a long time. Why you stopped making very cool hack?Thanks for watching.