The abandoned building Art hunts down his victims in is often drenched with blood, implying he has killed several other victims.
Art uses various weapons throughout the film including a gun, cleaver, scalpel, cat o' nine tails whip, knife, hacksaw, carving knife, and some others.
Art is seen completely drenched in blood at some points in the film.
The protagonists fight back by stabbing Art in the foot, back, face, punching and kicking him, and hitting him with a wooden plank several times. Mild blood.
Art kills his victims through mutilation. Nearly every death in the movie is insanely gory, and not at all for those with a weak stomach.
The edited version of this film removes the goriest and most explicit images but is still very brutal and sadistic in nature.