If you scroll up in this room:
Then you get this screen:
Then the game starts acting weird and becomes unfinishable
You're welcome. I enjoyed the game otherwise. I'm just glad that it's nothing too major. Not a lot of people scroll up and keep scrolling when one hits the top of the page. So not many folks may see the bug naturally.
I have a weighted mouse, and it'll keep on middle scrolling for 10 seconds or more if you let it.