The violence is mild to moderate, barely any blood is seen, and violence is limited to fistfights, shootings and explosions.
Batman beats up 8 different people in one scene, the beaten up people are seen with some blood on their body and face.
Two-Face hits a girl when deciding not to kill her.
As Batman is fighting the Joker and his henchmen, the Joker has a hidden knife blade in the toe of his shoe which he uses to kick Batman in the rib. The scene then cuts to Batman shouting in pain before throwing the Joker to the floor.
Frequent and prolonged scenes of violence throughout. There are multiple shootings, stabbings, fistfights, explosions, bombings and burnings. However, the violence is only of a moderate quality and never bloody or gory.
Gore is never shown and fights are generally blood-less.
A building is blown up.
Apart from Harvey Dent's scarred face, there is no blood or gore that is visibly seen throughout the entire film.
One main character has one half of his face burned, this is shown in detail.
A pencil goes into someone's face, brief and non-graphic. The person most likely died.
Joker Kill a Man With Knife.
There is a scene where it is implied that the Joker slashes the cheeks of another man in a Glasgow smile/Chelsea grin. We see nothing as the camera cuts away as it happens, but the actions are quite clear nonetheless.
A man is shown hanging from a noose in front of a window in a "jump" scene, and he is already dead when he is dropped.
Moderate Violence with people being punched, kicked, thrown around, shot at, with blood-less results.
A man suffers intense burns to one side of his face, later the muscle and bone are visible in areas and his eyelid is burned away to expose his whole eyeball.
A woman dies in a flaming explosion. The camera cuts to show the outside and the building blowing up so we see nothing of her death.
There is a scene in which a man is shown to have a bomb sewn under his skin. When it later explodes although the camera cuts to show the explosion from another window.
A man has his legs broken, after being dropped from a small height. The breaking is audible and you see his legs crumple under him.
Despite the nature of these scenes, there is no real gore and there is very, very little blood. However, the violence is discussed openly, and the Joker, who's the main perpetrator, often boasts or explains the violence. He also declares that people will die in quick succession.