This entry is my favorite one for this jam so far!
I really have the "Luigi's Mansion" feeling, it was a very good experience for me :)
I've finished the game (first try :D): there are a lot of different monsters (even if the worst ones are the most basic: the rats! I've lost life only to them x')), and there're even bosses!
I didn't really understand the benefits of tipping, the final plot twist about it was nice.
I just had a very minor yet frustrating bug: if our character is walking along walls, it seems we have a chance to be a bit stuck, preventing us to move. Quite dangerous with these stupid rats coming aroung :p
That's said, very polished game. Very well done!