For a slasher movie, the violence is rather tame and mild in impact. Most of the killings occur offscreen, and blood is pretty mild. Very brief.
A woman gets strangled to death with a phone cord
One man gets nailed to a wall with a kitchen knife
A knitting needle is lodged into the killer's neck, he survives
The killer gets poked in the eye with a clothes hanger
The killer gets shot multiple times
A woman gets her throat slit in a car
A nurse gets assaulted by the killer when he steals her car
A woman's in the closet as a guy breaks the closet door. The girl stabs him in the chest (no blood).
A man's bloody corpse is shown on the side of a road. Blood is shown on his face and head.
The Shape strangles a dog to death (we only see the dog's legs starting to limp as he is held in the air and hear whimpering).