I arrived on your page via the bitsy keyboard and I think I'm going to be just playing through a bunch:)
This was great, both atmospheric and challenging. I had to chant to myself upleftup4left2down ... (and when I got to the end of the section I thought "o but i wonder what happens if you go off the path; I guess I'll bump into a wall..." NOPE!) The last one was cool because it was tense and because it made you go slow.