A humanoid alien accidentally kills a man, most likely startled by him.
Four teenage boys fight in a swimming pool.
A teenage boy gets killed by a Xenomorph. Blood is seen splashing on a window as the others escape.
After fighting in a swimming pool, four teenage boys get chased by a Xenomorph, and one of them is killed on-screen. Blood is seen exploded from his head.
A father gets killed by a Xenomorph on-screen. Not much blood, but his reaction is clearly shown.
A Predator shoots a man in the head and it explodes on-screen.
Most of the movie is in very dim lighting, you can barely see anything. The blood is there, it is just hard to see.
The uncut unrated version is much more gruesome
Several teens try to escape from aliens. One is killed in a pool (a bloody cloud is seen in the pool) and one nearly makes it but is dragged offscreen and killed. We see blood splatter on a window.
A teenage girl is pinned to a wall with a disk blade. Blood pours down her body.
A teenage boy is impaled through the shoulder but survives.
During a scene in the hospital, an alien puts his mouth to a pregnant woman, whose water just burst, you can see her throat engorge repeatedly with alien eggs. Later on, she is screaming as her stomach moves uncontrollably. It bursts open and aliens come out. A very bloody and disturbing scene. This's only in the special edtion of the unrated cut.
During most of the movie, the aftereffects of the killings are seen, a lot of blood, and dead humans.