Intentionally plays on all the clichés of the horror genre, so there's no real message of note.
Positive Role Models & Representations
Tons of gory horror violence. Stabbing, slashing, bludgeoning, shooting, biting, people torn limb from limb, guts spilled, and fire hoses of blood. Much of this is intended to spark laughter as much as fear; the movie is winking at slasher movies that try to come up with "fun" ways to dismember human bodies. Main character was traumatized as a child by his mother's murder.
Topless women in a sexual situation are shown from behind and from the side. Sex is used as a harbinger of doom rather than as an erotic cinematic moment. Much talk of losing virginity.
Frequent use of "f--k," "s--t," variants. Other words include "pissing" and descriptions of sex acts and genitalia, etc.
Ease of Play
One character vapes quite a bit. At a party, it's possible some may be drinking, but it's unclear.