The gameplay was really fun, but maybe somewhat unintuitive at first. But once you get the gist of it, it is pretty addictive. It's also pretty impressive that there is such a progression, and interesting that there are different routes you could go on the map. I'd say I agree with all the suggested improvements/additions within the expanded game vision section of your submission, though some of them I may not have thought of (which is a pleasant surprise).
As an audio nerd, I liked the music a lot, however it was a little distracting at times for there to be silence between the loop points. I would've liked to hear a clean, continuous music loop. That being said, the music content itself was great and fitting for the game. As for the sound effects, I thought they were fine and that you could tell what they were (in other words, they didn't sound out of place or ill-fitting to the imagery), however they aren't the most exciting in my personal opinion. I wouldn't necessarily suggest redoing them entirely, however there could maybe be some changes done to the mixing of individual sfx to make them more exciting.
Overall really cool, and I enjoyed playing.