Great premise and execution of the premise. The art is fantastic. Lighting effects are really well done and compliment the art. The milk power-up is a nice bonus that mixes up the standard gameplay.
I was a bit confused by the fact that the monsters only move when the player moves. It removes a lot of tension from the game. I get that it adds to the idea that they aren't real, though.
The face the kid makes at the end gave me a good laugh.