"sugar mama/sugar mommy" in english subs.

Moderate violence. Fights break out and people are punched and drop kicked. Other people fall and bump their head against hard objects. A man has a piece of metal embedded in his back.

I would say moderate (yellow). People get into fights, a person is impaled in the shoulder with a piece of the train, and is seen bleeding, and the tip is seen through the guy.

A group of people passes around a bottle of alcohol.

It's not scary (as in a horror movie), it is intense and suspenseful.