Nothing.

A character is seen holding a severed eyeball, with blood running down their arm.

A mangled face is seen.

A character is seen with lots of blood on their hands. In another scene, the same character has blood on their face and hands.

A character is seen with a significant amount of blood on their face.

In one scene, the lower half of a character is seen with a lot of blood running down their legs.

Frequent use of profanities throughout. This includes "shit" and "fuck," as well as variations of "fuck." The word "fuck" is uttered more than 100 times during the course of the movie.

Characters are seen drinking alcohol in a few scenes. No drugs or smoking.