I like the idea of mixing the 2d sprite into a 3d world. The combat was troublesome to start with, I just needed to get the timing right. Could've used some health packs elsewhere in the level.
That boss fight was the oddest slowest boss fight I've ever had! Innovative idea though. I couldn't decide if it made any difference where the ball hit my bat.
It's also funny for me, because I was just watching a youtube video a few hours before about how to improve a simple break out game! Worth a watch if you have time.