I just watch the film and it wasn't scary to me. It was more disturbing. It felt like I was watching a snuff film (a film about people getting murder in the most horrible way possible). I have mix feelings about them using actual TV characters that children watch to kill people and making the kids in the films to watch their favorite characters killing people. Also, the children acting were okay. I was more confused about the human character's behavior.
Two characters went insane very quickly (one of them I don't blame). There's also that ending to where I said this "I don't think the ambulance people would do that to someone." Again I have mix felting on what I just witness.