I don't like it and I'll tell you why; When I hear the original, the bass is always the prominent driving force of the entire song. Now I went to youtube and listened the entire Sonic 2 soundtrack and I can say that the bass is the foundation of all their songs. Kind of just realizing this now which is probably why the soundtrack is so damn good. I might be biased here because I am a fan of good funky bass riffs. But I feel like first get a talented bass player in there and that will be the foundation of the entire song, for every song. Once you have an actual bass guitar in there you can manipulate it a bit in an audio program to give it a more crisp roboty/technoy vibe for song like the Death Egg. Some songs having more of a slap to it than others. Just make sure he is playing to a metronome set to the BMP of the song so you can lay down synth instruments later or have other musicians play instruments. So if I had to compromise to one instrument being a real instrument at this point I would say get a bass play to lay down the tracks for everything first.