I used some MIDI files from VGMusic.org to make this. Sonic the Hedgehog 2 sound effects were ripped by "GamerDude"
A remix of "Green Hills Zone" from "Sonic the Hedgehog 2" (on Game Gear), also known as "Sonic - You Can Do Anything" from the japanese version of "Sonic CD". Remixed for Sonic's 20th Anniversary!
This remix is free to use as long as you credit me!
(Sonic the Hedgehog, Sonic the Hedgehog 2 for GameGear, and Green Hills Zone are all owned by SEGA/Sonic Team)
Please contact me if you would like to use this in a project. We can discuss the details.