I'm glad to hear you enjoyed my game so much!
Luigi's mansion was one of the main sources of inspiration for my game, so I'm glad you noticed!
I also noticed in testing that the rats were surprisingly tricky to deal with, which I wasn't originally expecting when I coded them, but I decided to stick with it because I still thought it would be fun anyway.
I also happened to come across that bug after publishing, but it was too late to change unfortunately. I have however released an update on github just a few minutes ago that fixes that issue, and I might upload the fixed version after the jam (if I remember to lol). That issue only appeared after I fixed a major issue that showed up in the last few hours before the deadline, so I unfortunately didn't get time to fix it then.
Anyway, thanks for playing and congrats on completing the game!