Batman's body armored costume incorporates the imagery of a bat in order to frighten criminals. The details of the Batman costume change repeatedly through various decades, stories, media and artists' interpretations, but the most distinctive elements remain consistent: a scallop-hem cape; a cowl covering most of the face; a pair of bat-like ears; a stylized bat emblem on the chest; and the ever-present utility belt. Finger and Kane originally conceptualized Batman as having a black cape and cowl and grey suit, but conventions in coloring called for black to be highlighted with blue. Hence, the costume's colors have appeared in the comics as dark blue and grey; as well as black and grey. In the Tim Burton's Batman and Batman Returns films, Batman has been depicted as completely black with a bat in the middle surrounded by a yellow background. Christopher Nolan's The Dark Knight Trilogy depicted Batman wearing high-tech gear painted completely black with a black bat in the middle. Ben Affleck's Batman in the DC Extended Universe films wears a suit grey in color with a black cowl, cape, and bat symbol.
The 1993 "Knightfall" story arc introduced a new villain, Bane, who critically injures Batman after pushing him to the limits of his endurance. Jean-Paul Valley, known as Azrael, is called upon to wear the Batsuit during Bruce Wayne's convalescence. Writers Doug Moench, Chuck Dixon, and Alan Grant worked on the Batman titles during "Knightfall", and would also contribute to other Batman crossovers throughout the 1990s. 1998's "Cataclysm" storyline served as the precursor to 1999's "No Man's Land", a year-long storyline that ran through all the Batman-related titles dealing with the effects of an earthquake-ravaged Gotham City. At the conclusion of "No Man's Land", O'Neil stepped down as editor and was replaced by Bob Schreck.
Master of Disguise: Has mastered the art of disguise by the time he was 23. Has further learned Expanded Disguise techniques by the time he was 26. Batman has many aliases he uses to infiltrate the underworld or just to go undercover in public situations. His current aliases are: Matches Malone, Thomas Quigley, Ragman, Detective Hawke, Sir Hemingford Grey, Lester Krutz, Frank Dixon, Gordon Selkirk, and Mr. Fledermaus.
Batman is often treated as a vigilante by other characters in his stories. Frank Miller views the character as "a dionysian figure, a force for anarchy that imposes an individual order". Dressed as a bat, Batman deliberately cultivates a frightening persona in order to aid him in crime-fighting, a fear that originates from the criminals' own guilty conscience. Miller is often credited with reintroducing anti-heroic traits into Batman's characterization, such as his brooding personality, willingness to use violence and torture, and increasingly alienated behavior. Batman, shortly a year after his debut and the introduction of Robin, was changed in 1940 after DC editor Whitney Ellsworth felt the character would be tainted by his lethal methods and DC established their own ethical code, subsequently he was retconned as having a stringent moral code. Miller's Batman was closer to the original pre-Robin version, who was willing to kill criminals if necessary.