In 1994, allegations against Micheal Jackson cause him to be taken off/leave the Sonic 3 project, leading to copyright issues with Sonic 3's music that have the game unavailable for a remake. In 2006 a remake of Sonic 1 is created that ended up as a major flop due to it 's poor engine.
What if: Instead of a Sonic 1 remake with a whole new game and music engine, what about a Sonic 3 & Knuckles remake with the Sonic Advance engine is created. The copyright issues that have existed with Sonic 3's music are resolved, and Sega is free to remake the game as they please. Here's what the game's music would have sounded like if this had ever happened.

Act 1 Boss (Sonic 3) GBA Remix

Meepmeep189