Bruce Wayne (Earth-99)

"It's like a wise man once said: Battle not with monsters, lest ye become a monster."

- Bruce Wayne to Kate Kane

Bruce Wayne was the vigilante known as Batman. He protected Gotham City for many years before beginning a reign of terror in which he killed many people, including his universe's Superman.

Early life
Bruce Wayne was born in Gotham City to an unnamed mother and father and was raised in a mansion. At an early age, his parents taught him that "life only makes sense if you force it to."

As an adult, Bruce decided to become a masked vigilante using the codename of Batman and developed a strict non-lethal code. He used a cave below his mansion as a base of operations and numerous bat-themed pieces of equipment such as a protective suit and car during his crusade against crime.

Reign of Terror
During his career, Batman became friends with Superman, to the point where he learned that his name was Clark and that he was vulnerable to green kryptonite and faced many enemies such as Clayface and Jane Doe, collecting many trophies from them such as a bloody playing card, a cane and a snow globe.

Despite his superhero code, he eventually ended up killing one of his enemies, which resulted in him becoming mentally unstable and killing numerous other people to the point where he lost track of how many he had killed. He also killed Superman in battle after coming to believe that he was a threat to humanity due to his superhuman powers and his deference to authority, keeping his glasses as a trophy afterwards. However, this battle almost killed him and forced him to wear an exoskeleton for the rest of his life so that he could move around. What had been dubbed as "Batman's Reign of Terror" by the Gotham City Gazette ended with Bruce barely able to walk and believing that there is no hope for the planet.

Afterwards, his cousin Kate Kane decided to become a superhero to succeed where Bruce had failed, but this resulted in her being killed and Bruce's mental state further deteriorating.

Crisis on Infinite Earths
Five years later, Earth-1's Kate Kane appeared at the entrance of Bruce's mansion after Kara broke down the door. He came down the stairs and asked Luke to stop pointing his gun at them before welcoming them into the house. Bruce took Kate to his study and stated that Clayface was a puddle of mud and that Jane Doe is locked in Arkham and so wondered who she was since his Kate was dead. Kate explained to him about the crisis and how he was supposedly the Paragon of Courage, but Bruce laughed at this and stated that he wasn't a hero and had lost count of the many people he had killed.

Later in his former base of operations, Bruce showed Kate the Batman suit which was covered in cobwebs and explained that it would not fit him any more and that even if it did, he could barely walk. Kate then stated that the multiverse was in danger and that she needed his help, but Bruce stated that he didn't care, as any world like his deserved to die. Kara then entered the cave and warned Kate not to trust him as he had killed this universe's Superman, but Bruce explained that he had to as he was giving too much power to anyone with a badge or a flag before punching her across the room with the green kryptonite inside his exoskeleton. Kate tried to stop Bruce from killing Kara and during the struggle accidentally pushed him onto an electric remote, which electrocuted him. Kate tried to help him, but Kara prevented her from doing so, as it would have killed her as well. With his final breath, Bruce told Kate that there was no hope.

Powers

 * Abilities via his Exoskeleton: Bruce was forced to wear a metallic exoskeleton after his fight with Superman.
 * Enhanced Strength: Bruce's exoskeleton increased his physical strength to the point where he was able to punch Supergirl across the room.

Abilities

 * Genius Level Intellect: Bruce was an extremely intelligent individual, being both a master detective and a master tactician.
 * Master Detective: Bruce was a master detective, as he was easily able to deduce that the Kate Kane who appeared at his door was neither his Kate nor Clayface or Jane Doe.
 * Master Tactician: Bruce was a master tactician, as he was able to effectively orchestrate the murder of numerous members of his rogues gallery and Superman.
 * Peak of Human Physical Condition: Bruce was of peak human physical condition due to being a vigilante for many years prior to being severely injured during his fight with Superman.
 * Intimidation: Bruce was a highly intimidating individual due to the amount of people he had killed, with the Gotham City Gazette even dubbing this as "Batman's Reign of Terror".

Weaknesses

 * Disability: Bruce was severely injured during his battle with Superman, which left him unable to walk without his exoskeleton.
 * Mental Instability: Bruce was extremely mentally unstable, which resulted in him eventually giving into his homicidal tendencies and murdering various members of his rogues gallery.

Former Equipment

 * Batman Suit: Bruce wore a protective bat-themed black suit whilst operating as Batman.
 * Car: Bruce owned a car which is kept in his base of operations.
 * Exoskeleton: Bruce was forced to wear an exoskeleton after being severely injured during his battle with Superman.
 * Green Kryptonite: Bruce kept a shard of green kryptonite in his exoskeleton, which he used on Superman and Supergirl.
 * Trophies: Bruce kept numerous trophies belonging to his victims, including Clark's glasses.

In-Universe

 * Bruce owned numerous trophies from his career as a vigilante, including a bloody playing card, a cane and a snow globe. These reference The Joker, The Riddler and Mr. Freeze respectively.

Out-of-Universe

 * This is the first time Kevin Conroy has portrayed a live action adaptation of Bruce Wayne. He had previously voiced Bruce Wayne in numerous animated television shows, such as Batman: The Animated Series.
 * This version of Bruce Wayne shares similarities with various other media versions of the character:
 * He went on a killing spree, similar to the Batman of Earth-9 in a dreamworld.
 * He has a metallic exoskeleton, which is based off his counterpart from the Kingdom Come storyline.
 * He used to have a superhero code which included not killing.
 * He fought his universe's Superman similar to his DCEU counterpart.
 * He owns a Batmobile which is of a similar design to the one owned by the Batman of Earth-89.
 * Bruce's description of kryptonite as "A little souvenir from the old home town" is similar to how Lex Luthor described it to Superman in.
 * Bruce quotes German philosopher Friedrich Nietzsche during a conversation with Kate Kane.