Multiple graphic fight scenes and, depending on which version you're watching, the gore is intensified in the uncut version.
Throughout the movie, MANY people are killed in various ways: decapitation, cut in half, limbs torn off, dying from blood loss, shot with arrows etc. During the Eclipse scene the violence reaches a particularly high point, as soldiers get mercilessly slaughtered in nearly every way possible by demons. This movie is extremely bloody, and the gore is very highly detailed as people are decapitated and eaten apart, and the violence is enhanced by the art style and animation.
There is a scene where a large claw can be seen slowly entering inside of a man's eye. This may be difficult for some viewers to watch.
A man tries to stand up in a shallow pool and sees that his arm's been broken (we see the bone jutting out). Then the character attempts suicide by impaling his throat on a sharp piece of wood, but fails, and merely cuts his neck.
A man is shown in a torture room, starved and near-death. The jailer later reveals that he cut out the man's tongue and dangles it from a rope in his hand. He also cut out the tendons in his arms and legs with graphic scars seen on both.
A man is stabbed through the shoulder and has his tongue cut out with a knife. The sword then slides through his shoulder (lots of blood shown) and he falls to his death from a very high height.
A man is split in half down the middle with a sword.
The dimension of the God Hand (a group of immortal, demonic gods) is shown to be made from the bodies of the dead. The lands are literally made from thousands of corpses and bones, along with lakes of blood.
A man falls from a very high height and ends up surviving by falling into a MASSIVE pool of blood and severed limbs. He spends much of the remaining movie completely covered in blood.
A man (who's already dead) is suddenly ripped to pieces in front of another man.
A man has his head bitten off by a demon.
There are more gory moments in this film than one can count.