This is great! Love the puzzle aspect of it and the fact that you have to use the respawn mechanic to be able to do it, is such a nice idea! It really gives the game a lot more depth and since its like the center room it also doesnt make you have to go crazy distances so I think this is really well done! Good job!
I think the only thing missing for me is a bit of music in the background. Unless you want to have kind of an intense and mysterious atmosphere, which I had the feeling it had. Then its perfect!