The burnt corpse of a man is found. It is completely black with ashes. It is implied that he torched himself before the thing could assimilate him.
A character is killed by a gunshot. Minimal blood is shown.
An autopsy is performed on a dead thing. They take out its organs, and examine them in detail. Extremely gruesome, the scene is very gross.
Dogs faces split open and so does their body. Extremely disgusting.
When the thing is attacking the dogs in the kennel, a man shoots one of them to make its death quick and painless. Very little blood.
The thing (disguised as a man) has gasoline poured on him and is set on fire.
A brief fistfight ensues.
The thing latches its mouth onto a man and thrashes him around by his head as he screams. He is eventually thrown into a shelf, where we see his bloodied body onscreen briefly.
An alien is blown up onscreen with a dynamite. No blood.