What a cute little game! I had fun completing all of the tasks~
I was surprised the task list wasn't populating when I was talking to the different ghosts though. I assumed that I could look to it to see what else I needed to do after I talked with the ghost who "held" the task, but I only ever saw all question marks or the last task. But the game was small enough that it was easy to wander around and complete things anyway.
Nice job!