R violence type: blood and graphic.
While driving, a teacher has Charles pull over to have a chat, then the teacher gets sexually aggressive and gets his hand ripped off by the student (blood splatters on the windshield), we see a fountain of blood squirting from the bloody stump on his arm.
Charles gets slapped by his mother.
Charles gets stabbed in the eye with a corkscrew (blood pours from his socket).
A police officer is stabbed with a pencil in the ear, he then shoots Charles in the back (but he doesn't die), then he takes the gun from the officer and shoots him in the stomach.
A police officer steps in a bear trap.
Mary lifts two cops bodily off the ground and kills them by slamming their heads together with her super strength.
Another officer has some of his fingers bit off (blood pours from the stumps), then gets his arm twisted which causes a bone to pop out.
Then another gets stabbed with the ear of a corn, dropping to the floor (he is left in a pool of blood).
Plus another gets thrown and gets his arm clawed in a bear trap, then is impaled on a picket fence.
A girl is pulled out of a police car through a broken window (in the process, her arm is getting dragged on a piece of glass).
The creatures in this film are very strong and powerful to do most of these graphic things.