I found the navigation a little confusing- sometimes it was hard to tell if I'd already been in an area or when it was teleporting me in a circle. Maybe label start at least?
One bug: I did get stuck at one point when I was all the way to the right of a room with no exits on that side and there were two enemies directly to my left, blocking me from moving left at all, so I could just go up and down.
The pop-up at the beginning was nice- I would maybe add more of these to explain the abilities relating to K and L.