Nice job! This piece came out pretty yummy, but synth part sounded kinda... Empty. Maybe it's just me, but maybe you can make it slightly faster? This is Sonic the Hedgehog after all :)
Definitely one of the best remixes out there. Not THE best, but man, I really enjoyed. Keep making more music, you have talent.
Please contact me if you would like to use this in a project. We can discuss the details.