Really nice job with this! I liked the art and the overall gameplay - had a lot of fun! I found the controls a little difficult at first but got used to them after a while. The only thing I'd say is the sound was very loud for me (and I had the master volume turned almost all the way down) so it scared me to death! I was expecting the master volume to reduce sound volume too, but maybe that's my fault for expecting that.
Overall though, really nice game - brilliant job!