A very nice mix. The original theme is 'jazzed' up and made much livelier. I'll admit that when I first listened to it I wasn't sure I liked it all, but it quickly grew on me before it even ended and a few listens later I really like this. It's lively, energetic, fun, and still keeps the sort of 'essence' of the original. Well done.
Also, can I ask if I'm the only one who was reminded, up until about 1'10 when the main theme kicked in, of the music from FF7:AC where Cloud fights Kadaj etc. in the Forgotten Capital? Nothing good or bad about that it's just something that occured to me
But anyway, a good remix, well done.