I like the graphics and music. The background is especially pretty. The player controller felt odd to me. In addition to what folks have already said, I felt the animation of running didn't match with the speed. I felt like with a run cycle that energetic I should be moving much faster than I was.
I tried it twice because I ran into dead ends. On my second playthrough the audio worked fine. I liked that each area had different audio and that it changed as I lost health. On my first playthrough I think something went wrong with the audio triggers because I ended up listening to multiple tracks at once.