Very cool game and gameply concept! The only thing I don't like is the loading screen. I have the feeling it isn't really needed (by looking at the game it's not THAT heavy) and could be made more esthetic. Also some sprites are weird (have another graphical theme) in this environement and some are a bit pixelated or blurry.
Else the most original gameplay concept and a beautifully anumated menu! Keep up the good work!