I finally was able to get this game two days ago, and I LOVE IT!!!
A bug I found though is that after I killed whatever was lurking the hallways on floor 1, the audio cue would still play when I got near where I killed it.
Another bug I found is that after I killed the monster in the telescope room and re-entered the room later, he'd come and turn the light off again, even though he's dead.
Also, a good bit of the doors flash the flesh covered door when opened.