Progress report: I have the intro all set, with the basic structure of the narrative outlined. More importantly, I have a doll! It's modeled after cutout paper dolls that I remember my sister having as a kid with pins in the joints so you could pose them. My original idea was a scary moment that resulted from moving the doll parts around in certain ways, but I couldn't really think of any gameplay beyond that, so I'm going with a more narrative approach.