Several men are shown mostly disrobed or nude in a sauna, but no intimate parts are visible.

A man and woman drunkenly walk into a hotel room. They kiss and begin to disrobe. The woman appears in lingerie but the scene fades out.

A mention of prostitutes.

A man is shown thrusting into a woman from the upper half of his backside with his butt barely visible. Female breasts are shown briefly during this same scene.

A woman is shown dead covered in blood with her breasts visible. Only a few seconds.

No sex, man's butt is seen for a few seconds in a non sexual way

In slow motion, a group of men are mowed down with machine guns. An extremely bloody scene, with blood flying everywhere.

A man has a noose tied around his neck and tied to a post. He is put in a car and is driven away speedily. When the rope gets too short, his neck breaks messily. Believe it or not, this is one of the less graphic scenes.

A man is graphically sliced in the face twice with a razor. Blood is shown pouring out. He later is shown with long scars.

Several men are shot in a bath house. The shots are usually directed at the head. We see blood and brain matter splatter everywhere.

A woman is shown dead covered in blood.

A man has a chopstick shoved in his ear. Very graphic and disturbing.

A man has a dentist's drill shoved in his mouth. We see this onscreen for about 15 seconds straight with no cutaways. He screams and coughs up a lot of blood. The most gruesome scene of the film

A man slowly cuts off his own finger. Seen in a graphic close-up, with blood pouring.

A man is punched in the chin, causing him to graphically bite his own tongue off. He is then shot dead offscreen.

Several other less memorable scenes of violence.

IMDb has a typo. The actual rating, straight from the MPAA, is rated R for Strong Brutal Bloody Violence Throughout, Language and brief sexuality

The swearing is said in Japanese, but they are visible in English subtitles.

Frequent swearing, including fuck, shit, asshole, damn, bitch and more.

Around 30 uses of the f word.

A few scenes take place in bars where people are drinking.

Many people smoke cigarettes casually throughout.

A few mentions of drug trafficking and dealing.

A few instances of people acting drunk.

People drink alcohol with their meals in a few scenes.

A woman seen from a distance is said to be buying drugs.

Some brief drinking and smoking

The many instances of violence and killing throughout may be difficult for some viewers.

Several tense interactions between rival gang members, where certain individuals are in danger.

Several instances of betrayal.

The fact that most of the characters are criminals, and commit criminal acts throughout, may be frightening to some viewers.

A few very disturbing scenes of violence.