The battle system is very impressive due to the three-dimensional perspective and camera rotation. You must've lots of motivation by your side, I guess. xD
The only real drawback is the sloppy walk animation and the - probably - huge size of the game, data-wise. Final Fantasy 0 had more than 1000 Pictures and just as many panoramas and well, it was a pain to download it. X_X" Hope you use something like the PNG optimizer to compress the images further without quality loss.

Oh, and - please - if it turns out to be as huge as I expect it to be, do not use MP3s~ That'd be an overkill for my connection.