An alien is removed from a woman's abdomen via automated cesarean . We see a laser slice through her flesh, a claw removes the alien sac and then the wound is stapled shut. At one point the alien sac bursts, causing a blood-like liquid to explode everywhere, at which point the woman reaches inside the wound and detaches the umbilical cord. Although there is little blood, the scene is very realistic and disturbing.
A snake-like creature wraps around a man's arm and snaps it (we see bone poke through his sleeve, although because it's dark, it is difficult to notice). The creature then lunges into the man's mouth, which chokes him to death. Another man tries to help him by cutting the creature in half, however it sprays acid at the man, causing his space helmet to melt onto his face.
A human-like alien drinks a black liquid that causes him to writhe in pain. Black veins appear all over his body and he begins to disintegrate, and his arm snaps and he hits the ground before falling off of a cliff into some water below, this scene is quite disturbing but highly stylized, therefore reducing its intensity.
A mutated man jumps on another man's abdomen, crushing it and causing the man to spit up blood. He also smashes another man's head into the ground, causing bloody to spray. He then kills several other people by beating them and throwing them against objects. The mutated man is shot several times and then run over by a truck.
A human-like alien fights with another squid-like alien. They are both killed during the fight. Later, a creature bursts out of the human-like alien's chest, which is shown quite graphically with some gore. Although the gore is black, and the entire scene is dark, therefore reducing its intensity.
A man becomes very ill, and is set on fire with a flamethrower. He is seen burning while still being alive for a short time. The scene is not close up and is not graphic or detailed.
A highly-realistic android is decapitated by an alien. The android's head is then used to bludgeon an elderly man in head, killing him (a large bruise and blood is shown).
A severed alien head is reanimated, and later gorily explodes. This scene is quite disturbing but the combination of it being non-human and having green blood, reduces its intensity.
Several people fly a spaceship into a large ship, resulting in a large explosion. All people on-board are presumably killed.
A huge spaceship crashes to the ground, as two women try to run away. One woman falls and is crushed off-screen.
A woman is caught in a huge sandstorm, and is nearly swept away.
A man has a badly bloodshot eye, and when he looks in a mirror, he sees a small creature wriggling in it.
An alien throws two people at a wall, presumably killing them.
A woman hits two people with a metal bar, knocking them unconscious.
A woman slams an android against the wall during an argument.
This movie would be PG-13 if not for the cesarean scene.