People are killed by graboids, shriekers and "ass-blasters" throughout the movie.
A man cuts open a graboid with a chainsaw to free a man who was swallowed by it. Orange and red monster blood flies everywhere.
We see the remains of two people. Some blood, not as graphic as you'd think.
A man is seen with his back eaten off by monsters. He is barely alive. Some blood.
A man is knocked off a cliff, and falls to his death. Some blood on his body, but the impact is offscreen.
A monster explodes. One of its intestines flies and hits a character in the face. Graphic, but meant to be humorous.
Most of the onscreen violence is mild compared to the other two films, and features much less blood.