how does the joker die in arkham city
1 At the end of Arkham City during Joker's death, Joker stabbed Batman in the arm, which made him drop the cure on the ground. 2  Afterwards, Batman stated that he would have saved him. 3  Joker technically killed himself by making Batman drop the cure.atman told Gordon that he would find a way out, but Joker told him not to make promises that he couldn't keep, as he was in control of the asylum and therefore where Batman was able to go. As Batman told Joker he wouldn't let him run, Joker cut off his hero speech and goaded him to just pursue him.
Arkham City showed that the amount of Titan that Joker used was killing him, and when Batman first encountered Joker in Arkham City at the Steel Mill, it's shown that his face had started to develop boils and rashes as well as him looking very sick, with Joker's tailcoat being much darker in color.atman told Gordon that he would find a way out, but Joker told him not to make promises that he couldn't keep, as he was in control of the asylum and therefore where Batman was able to go. As Batman told Joker he wouldn't let him run, Joker cut off his hero speech and goaded him to just pursue him.