None.

A man suddenly has bloody hands.

A woman with a bloody head is seen.

A man is bloody in a phone booth.

A woman covered in blood crawls down the stairs.

A black & white scene of a man covered in blood kneeling over a woman's body.

A woman hits a man in the head with a frying pan. He twitches on the ground for a minute.

Some dead bodies are seen on the ground.

Mentioned that people have died.

Bastard said twice (in subtitles).

Talk about a man being drunk on sake.

A man offers a woman some alcohol.

Some people drink sake.

The scenes where people are being chased by a woman could be frightening.

A hand reaches out of a garbage bag.

A woman pops up under a man's seat.

A woman chases a boy through a school.

Implied from dialogue that two girls are going to be attacked by a woman.