Sonic 1: The Super Challenges

It's a ROM hack where the main gimmick transforms and speeds through South Island before your ring counter runs out. Destroy everything in your path, collide with anything you bump into and try to get hurt. The only thing that'll damage you is time; you better not waste that. Every ring counts so try and collect them as fast as you can! Even though this is a challenge-based hack, you will find that this hack will have more than just a simple concept.