When the detectives come into the house, they go downstairs and see a graphic image (for a few seconds) of the dead guy's head (thoroughly rotted) and extremely gross looking.
A metronome (used to hypnotize people) is planted firmly and bloodily in a sleeping man's chest. Blood splatters everywhere.
At the end of the first movie, two detectives explore a hotel; one is sent to get reinforcements. The other investigates a little more and is surprised by a disgusting looking zombie who comes at him. The detective shoots at the zombie, splattering blood across the dollar bills lying scattered around, and the movie ends.
A pile of severed body parts lying in a bloody pile and a dead woman with nasty looking cuts on her.
A man pulls a lever, and a gigantic blade-like thing starts swinging back and forth with a nice clean cut through the chest of the woman. Graphically shown, is the interior of the woman's body.
A man shown at a cemetery with the police - he had just witnessed the funeral of his cousin - he had pulled out all 32 of her teeth. Open mouth of cousin shown.
Strikes a cat on the neck with a saw, blood shown dripping down from the sawblade.
A man uses an ice ax to chop two detectives down, blood goes everywhere.
A man hangs himself.