I liked it
I didn't expect the violence because it looked so innocent, like the icon and preloader, but then again, I didn't look at the rating on this before watching. I think people shouldn't blam you because it "took them by surprise". It does say Mature and Extreme Violence.
and there is a lesson to be learned for all you young kids, don't try to push the limit of your toys, they just might hurt you! (j/k, what moral!)