I thought what I did in SonicWebMania was very cool, but I realize it's a very niche project...
So I back ported it to the engine!
Now you can play it all in one package, all with sound (Origins games can retrieve sound from either the 2012 and 2013 games -OR- Sonic Mania itself!).
PS: if anyone can build the MacOS version, please share it, I have failed so far...