Eventually recovering and escaping, Batman started investigating both the toxin and its first victim. Discovering the latter to the Joe Chill, Batman learnt that Joker knew his identity and saved a family from being murdered in the same vein as his parents. With Joker terrorizing the city, he tried to forge an alliance with the Court of Owls to help stop the criminal's plan, only to be turned away. With help from Alfred's daughter Julia, Dick and Gordon, Batman discovered the substance Dionesium, which had given Joker regenerative capabilities and made him immune to the toxin. After Joker broke into the Batcave and attacked Alfred, Batman sent Grayson to distract the Clown Prince of Crime whilst he searched for a pool of Dionesium, eventually finding one after retracing Joker's escape route after his attempt to kill the entire Bat-Family.
Batman, in most of his incarnations, is a dark and brooding hero with a personal vendetta against crime and injustice. Psychologically traumatized by the death of his parents, Batman has sworn to rid Gotham from the criminal elements that took his parents away from him. He is extremely pessimistic and suspicious, which often makes it difficult for him to trust people other than Alfred, Commissioner Gordon, Lucius Fox, the Robins or the Batgirls.
Batman meets and regularly works with other heroes during the Silver Age, most notably Superman, whom he began regularly working alongside in a series of team-ups in World's Finest Comics, starting in 1954 and continuing through the series' cancellation in 1986. Batman and Superman are usually depicted as close friends. Batman becomes a founding member of the Justice League of America, appearing in its first story in 1960s Brave and the Bold #28. In the 1970s and 1980s, Brave and the Bold became a Batman title, in which Batman teams up with a different DC Universe superhero each month.
The coolest version in this film, however, came at its end, with the experimental "sonar suit." The coolest part about this suit is the fact that in one fell swoop, Batman not only beat Riddler at his own game, he activated some killer sonar tech which allowed him to pinpoint the exact spot he would need to throw his batarang to thwart Nygma’s mind reading world domination plan. It also just looked so sleek and menacing.
When Greg Capullo drew the armor in "Batman," however, he made it look a lot more relaxed and natural-seeming. It worked a lot better in that context, especially as Capullo's "Batman" was constantly in motion, which didn't really fit with the stiff design of the armor. Capullo kept that in mind when he got the chance to re-design the costume at the end of his run on the book.
Over the course of the first few Batman strips elements were added to the character and the artistic depiction of Batman evolved. Kane noted that within six issues he drew the character's jawline more pronounced, and lengthened the ears on the costume. "About a year later he was almost the full figure, my mature Batman", Kane said. Batman's characteristic utility belt was introduced in Detective Comics #29 (July 1939), followed by the boomerang-like batarang and the first bat-themed vehicle, the Batplane, in #31 (Sept. 1939). The character's origin was revealed in #33 (Nov. 1939), unfolding in a two-page story that establishes the brooding persona of Batman, a character driven by the death of his parents. Written by Finger, it depicts a young Bruce Wayne witnessing his parents' murder at the hands of a mugger. Days later, at their grave, the child vows that "by the spirits of my parents [I will] avenge their deaths by spending the rest of my life warring on all criminals".
One day I called Bill and said, 'I have a new character called the Bat-Man and I've made some crude, elementary sketches I'd like you to look at.' He came over and I showed him the drawings. At the time, I only had a small domino mask, like the one Robin later wore, on Batman's face. Bill said, 'Why not make him look more like a bat and put a hood on him, and take the eyeballs out and just put slits for eyes to make him look more mysterious?' At this point, the Bat-Man wore a red union suit; the wings, trunks, and mask were black. I thought that red and black would be a good combination. Bill said that the costume was too bright: 'Color it dark grey to make it look more ominous.' The cape looked like two stiff bat wings attached to his arms. As Bill and I talked, we realized that these wings would get cumbersome when Bat-Man was in action and changed them into a cape, scalloped to look like bat wings when he was fighting or swinging down on a rope. Also, he didn't have any gloves on, and we added them so that he wouldn't leave fingerprints.
Master Martial Artist: Batman has entirely mastered and even perfected every single form of hand-to-hand combat known to man and is one of the finest human combatants Earth has ever known. He was trained around the world for years to master multiple martial arts. Master Kirigi stated to Bruce that he is a natural genius in fighting due to "his great violent nature inside of him". Even Karate Kid of the future was very surprised that Bruce adapted and learned future-style combat in seconds that he never even experienced. He has completely mastered all unarmed hand-to hand combat styles of martial arts including but not limited to MMA, Muay Thai, Escrima, Krav Maga, Capoeira, Savate, Yawyan, Taekwondo, Judo, Jui-jitsu Brazilian jiu-jitsu, Ninjutsu, Kendo, Fencing, Kenjutsu, Kali, Bojutsu, Wrestling, Francombat, Boxing, Kickboxing, Hapkido, Sambo, Wing Chun, Parkour, Shorin Ryu, Silat, Chin Na, Kyudo, Aikido, Varma Ati, Jeet Kune Do, Shaolin, Ba Gua, Hung Gar, Tai Chi, Kung Fu, Kenpo, and Karate. His primary form of combat is a harmonious mixture of Jui-Jitsu, Taekwondo, Judo, Muay Thai, Savate, Karate, Kung Fu, Boxing, Capoeira, Krav Maga, Aikido, and Ninjutsu. Batman has proven he easily defeat a highly trained Green Beret within seconds, defeat multiple groups of armed opponents, fight evenly with Lady Shiva and Deathstroke multiple times, and defeat enemies that are physically superior to him through the use of sheer skill. He has also trained many other people to be the fighters they are (Nightwing, Red Hood, Tim Drake, and so on) and it can be inferred from him turning them into the fighters that they are that he is indeed a skilled fighter.
The character became popular soon after his introduction in 1939 and gained his own comic book title, Batman, the following year. As the decades went on, different interpretations of the character emerged. The late 1960s Batman television series used a camp aesthetic, which continued to be associated with the character for years after the show ended. Various creators worked to return the character to his dark roots, culminating in 1986 with The Dark Knight Returns by Frank Miller. The success of Warner Bros. Pictures' live-action Batman feature films have helped maintain the character's prominence in mainstream culture.