You can now download the Sonic Fan Mix demo from the link below. The demo has 1 zone that spans 3 acts. No boss battle has been included.
Personally I haven’t played it yet, but I would love to hear what you guys think. Leave your feedback in the comment section. This is the same one I posted the screens about, which I called Sonic 2 HD. Sorry, the name is ‘Sonic Fan Remix’.