Nice work! The gameplay feels solid and the sound placement was really nice! (I used headphones.)
Having the doors hide the contents of the room is a great use of the theme and I could feel the tension ramping up throughout my playing from the constant life drain - cool mechanic! I think I actually got pretty far before a zombie snuck up on me and chewed up the rest of my health.
Thanks again for playing/rating Untangled. And congrats on finishing the jam!