Sonic 1 Beta Remake is a Sonic 1 hack created by Mistergambit. The hack has all of the Sonic 1 levels redesigned to look like their prototype counterparts, as seen in various magazine screen shots.

There is so much evidence for this. The King of Pop loved video games, appeared in several Sega releases and (most obviously), several tunes in Sonic 3 sound exactly like sections of Michaels released ...