Cool concept and cool atmosphere! I love this kind of games, but I got suck on room 4 lol.
Technically there are some aspect that need a bit of polish. The camera sometimes seems a bit off, and the character enter in the rooms just approanching them (I guess this happens because the colllider is on the whole player sprite, maybe you could try to reduce its size and move on his feet).
Overall the game is fun and original! Good job!