Nice. I actually played through most of Getsu Fuuma Den and it's a pretty good game. However, if you guys thought CV2 (which shares certain similarities with this game) was hard to figure out then what await's you is a ridiculously confusing adventure. If you tackle this fish, do it with a Walk through and a lot of patience. Incidentally, Getsu Fuuma Den shares even more similarities with TNMT1. In fact, you could probably use TMNT as a base for a prequel to it.
Oh, and the remixes sound great.