The roaches make frequent sexual references to Joe during the movie.

An old woman is tripped down the stairs and dies coughing up her flat keys.

Two hoods are thrown down the stairs

Roaches drop something on Joe's head we then see him tied down in a suit, a funeral suit.

Someone is seen being dropped from a window.

Two hoods smash up Joe's Apartment

The roaches cause two hoods and one mafia boss to fall down the sewers, to which they place the sewer grate back after they fall.

Non-stop usage of "Shit", as the word is used as one of the main plot points in the film, but even then it's only spoken eight times. At least one "Fuck" as well. Single uses of "Bitch", "Crap" and "Asshole", two uses of "Ass". Many uses of God's name as well.

One of the roaches uses the F word once when they have Joe tied down.

Roaches are seen drinking and smoking in this

The scurrying of the roaches when they are in a swarm can be creepy