I have had some clipping through walls issues and also some enemies that would get stuck in walls too which would force me to reload the page. Also I think that there should be an 100% chance of getting at least one note in your first two rooms.
We will try to fix this in the next release of the game. Which enemies in particular have been giving you trouble?
I think a snake escaped. It was taunting me on the other side of the exit.