Style of the game is very cool and fits the tone of the game. Atmosphere of the rooms definitely feel creepy through the art and music.
However, I can't access the staircase even with the key, only way is to exit through a broken bounding box to the left of the starting room and go all the way around the top, even then I found myself getting randomly teleported out of the upstairs section.
The screen is a bit too close in personally, although it may be intentional to reveal secrets and other things I may have missed.
Cool game concept and itch page that match it!