I've been thinking about this sort of game myself!  You have a good start of a game here.  The characters are cute, and it's fun to run around making mischief!  A few more sound effects and maybe a progress bar on when the player is doing something would be helpful.  Plus it was difficult to know when someone was coming into some of the rooms.  Maybe modifying the camera angle so that it's easier to see characters traveling right next to the other side of walls or something.  Or maybe being able to hear people move around about the player's avatar could be helpful.

I encourage you to work on the game some more for practice.  Who knows, maybe you'll come up with some code/utilities of your own to use next game jam (if the jam allows that).