I liked everything about your game, except the fact I'm really bad at it!
Literally, I ALMOST finished the tutorial :D
I'll try it again tomorrow, with a fresh mind, but let's focus on my initial experience :)
So, like I said- I liked the look and feel of the game. The pixel-art-cute-pumpkin-guy and the chiptuney music felt like a PC game from 1994 (I mean it in a good way :)). I loved the fact, you included the tutorial, and difficulty levels. And the cherry on top- online leaderboards (didn't load at the time of me playing, but my internet is wonky today, so that might not be on you). What I'm saying is- that is a really high level of polish in just 4 days, and in jam where a LOT of people had very ambitious ideas that had to be visibly scaled down, or overscoped, that's really something comendable!
As for the theme- I felt like the player was more of the uninvited guest than the ghosts. Imagine- you're chilling under your... uhhh... numbered tile, and out of the blue, this pumpkin guy starts going around and marking your stuff! And not only this- he does that badly, waking up you and your mates! Of course you're gonna chase him around!