Omg, the music design is awesome! I love how the song gets more intricate as you pick up more stuff, or while the big enemy is aggroed. The game-over screen is funny, and I especially like the art at the end.
If I didn't read the description beneath the game, I'd have no idea that I needed my son, so I think that could be a bit clearer. Also, feedback sounds or effects when taking damage would be cool, as I had trouble noticing that the dolls were throwing stuff to hurt me until my second playthrough.
I had fun, and I think grocery shopping as a little vampire and finding your bat son is pretty cute.