Effective, Jazzy, Nice.
First of all, I like it. It's nice to listen to; it has a simple, jazzy feel. It is repetitive, but as ambiance music and a loop, that makes sense. I'm curious as to the programs and general processes you used to get your product. Nothing too in depth, of course, but something. I grant you, I have never heard this song, as I have never played Sonic 2. Regardless, I like it. Keep it up.