Yes Joker dies in Arkham city, if you're wondering how he “reappears” in arkham knight, he is nothing but a hallucination brought about by having Joker's blood transplanted into Batman in arkham city and scarecrows fear gas bringing life to the Joker that hid inside Batman's mind.
Arkham City Incident. While in Arkham City, Batman was ambushed by Clayface (disguised as Joker) and knocked out by Harley Quinn. After he woke up, Batman discovered that Joker suffered from a horrible side effect of Titan which gave him a fatal disease that progressively killed him.
Earlier in the game, Joker fakes his own death in a way that completely fools Batman's hi-tech cowl, showing an accurate skeleton and making the cowl display Joker's status as "deceased". Then he pounces and gasses batman from behind, and we don't see that fake Joker again.
In "Arkham Knight," the Joker is actually dead. The evil clown you encounter is in fact a hallucination, a consequence carrying over from the conclusion of "Arkham City," where Joker infected Batman with a toxic sample of his own blood.
In this world, after Joker infects some kids with a Joker virus, Batman seems to have enough and snaps his neck. Then again, Batman insists that Joker died due to the chemicals in his system finally catching up with him. It's discovered that the Joker has a chemical curse that comes with his death.
While Batman was able to beat Joker and return him to normal, Joker's blood was poisoned, slowly killing him. Batman fought to save him, but Joker's own evil resulted in his death, with the Dark Knight carrying his body out of his base in an echo of a portrait of Cain and Abel included within the game.
Batman admits that he would have saved him despite everything Joker had done. Joker finally succumbs to his illness and dies. Batman carries and places Joker's body on the hood of Commissioner Gordon's car before leaving Arkham City in silence.
Throughout the entire series, he has tried to make Batman break his code in many ways multiple times. He routinely murders, tortures, and experiments on his henchmen along with threatening their family members, for their failures or just because it amused him.
Now That It's Been Confirmed That Bruce Is Still Alive And Still Batman At The End Of Arkham Knight, What Do You Think Of The Ending? I'm more surprised people here thought Bruce was dead. "Alfred, let's blown ourselves up." "Capital idea Master Bruce."
Aside from the two names stated above, Joker referred to the illness as Joker-itis and Mad Clown Disease (a parody of hepatitis and Mad Cow Disease). Batman mentioned that Joker Infection was a variant of Creutzfeldt–Jakob disease that was mutated beyond any medical record.
The interrogation scene suggests that the Joker knew Batman was Bruce Wayne, as he admitted they were more alike than he thought. However, his ultimate goal was to mess with Batman, not to reveal his identity.
Pseudobulbar affect (PBA), or emotional incontinence, is a type of neurological disorder characterized by uncontrollable episodes of crying or laughing. PBA occurs secondary to a neurologic disorder or brain injury.
He frequently concocts elaborate schemes to entrap his arch nemesis, Batman. One of The Joker's most evil schemes involves his use of the Titan Formula, a potent toxin he secretly funded to be a successor to Bane's Venom.
In Batman: Arkham Knight - Genesis #2, it is revealed that while holding Jason Todd captive, the Joker allowed other Arkham inmates to come and torture the young Robin as well.
Crane, in almost all of his incarnations, is cruel, sadistic, deranged, and manipulative above all else. Crane is obsessed with fear, and takes sadistic pleasure in frightening his victims, often literally to death, with his fear toxin.
Batman: The Dark Knight Returns #3 (August 1986) by Frank Miller. The Joker doesn't shy away from killing anyone, and that includes children. After Joker killed everyone at a late-night talk show and escaped in The Dark Knight Returns, he set up a booth at the county fair.
Potential theories are as follows: Jason Todd - The Arkham Knight, now know as the Red Hood, was never apprehended following the events of the game, and in keeping with his vigilante tradition, he may have taken up fighting villains in Batman's stead.
Arkham City was actually a large part of Gotham City, that was turned into a lawless warzone for the criminals of Arkham Asylum and Blackgate to run free and do whatever they pleased as long as they did not try to escape.
The true reason why Batman doesn't kill the Joker has been revealed. The Dark Knight believes that there is still some part of the Joker that is worth saving. This belief in humanity and finding it even within Gotham's most depraved criminal proves that Batman is and always will be one of DC's most caring heroes.
The Joker is explicitly shown killing 23 people in The Dark Knight, but the number exceeds 30 if the kills made on his orders or due to his manipulations are also counted.
Origins. When the Joker became obsessing over destroying the Bat-Family, he decided to arrange for his face to be surgically removed. According to the Joker, he did this to symbolize how even without his, "Mask" he was still the joker where-as Batman's Robins and Bat-Girls' identities were only mask-deep.
