Cool use of the theme! You managed to take both "Halloween" and "uninvited guest" and combine it into one solid, cohesive game. That's difficult to do but you did it well - congrats!
A quick note on the art: I absolutely love the pixel art style of the house. The pixel art is full of character and personality, but I'm disappointed that this didn't carry into the character designs, which use a completely different vector-based art style. This took from the overall charm of the game.
Now, while text-heavy games aren't usually my thing, there were some strong elements in this one. You've managed to squeeze in a lot of content for only a 4 day jam, which is a feat in itself. The game is also intuitive and clear to understand, which is another bonus for me.
Great work! I enjoyed playing and reviewing this one :)