The fights themselves are beautifully choreographed, but they’re also fast and desperate. The people don’t seem like martial artists showcasing their technique on screen; they seem like people trying very hard not to get killed. The blows are grisly, but they’re also fast and intricate. There’s a lot of countering, and also a lot of picking guys up and swinging them into walls. When people get kicked in the face and knocked down, they don’t just lie around moaning; they get back up again and try to keep fighting. The best fighters seem superhuman, but they also get injured and bloodied. Every scene is essentially some version of the hammer-fight scene from Oldboy , or it’s something on that level.