Neat mechanic, and very nice atmosphere. However, the controls were killing me, lol. The levels are way too big for single press movement, in my opinion. I wouldn't mind seeing continuous movement. I managed to reach the area with the ramps and found 2 keys, but at this point I could start feeling my finger disagreeing with me playing this game so I stopped :(
Using ctrl is not wise for a browser game, due to the shortcut potential. I once had ctrl as crouch in a FPS jam game, and didn't realize that ctrl+w is bad news until right before the deadline :D so I recommend not using ctrl in the future for webGL games. Alt and esc are also problematic, the rest should be fine I think.
Another thing I found tedious is the unskippable scrolling text, which then has to disappear before you are able to continue, making it twice as bad lol. But that's something I personally dislike. It might fit the aesthetic but if this were a dialogue heavy game I would've quit way sooner.
So yeah, with some tweaks this could be a neat little atmospheric game! I really liked the mood it set and the body-as-a-resource mechanic has potential.