After Harley discovers Batman was teleporting to their location, the Joker forcefully makes Harley return to their van as he has a conversation with Batman and takes the bomb off standby, and forcefully orders Harley back to the getaway van. He is seen arming the bomb next to a statue of Superman in Metropolis, much to the excitement of his world's Harley Quinn.

The main universe Joker first appears after the Justice League discover Lex Luthor gave him a nuke to blow up Metropolis.

The Joker manically shrieks with laughter as Superman punches through his chest and tears his heart out. After taunting about his plans to escape and to 'top' the destruction of Metropolis in his next scheme while further insulting Superman multiple times, the Man of Steel murdered the Joker, as Batman watches in horror. Batman tried to force the Joker to tell him where he got the nuclear weapon, but this was then cut short when a grieving Superman broke into the interrogation room and confronted him. The Joker appears in the interrogation room in the GCPD (Gotham City Police Department) after nuking Metropolis, where he was being interrogated by Batman. However thanks to an encounter with Scarecrow where she is affected by his fear gas Harley Quinn, now an ally of Batman's, hallucinates the Joker trying to sway her back to her old ways by trying to convince her into killing Batman, however Harley proves her will is stronger and physically fights back against the vision of her ex boyfriend, breaking through Scarecrow's fear gas and finally defeating her fears. If he were alive to see the chaos he’d created, he would surely be smiling and laughing. By destroying Metropolis, he set the events in motion which made enemies of Superman and Batman. Though killed by Superman, The Joker continues to haunt the lives of all those touched by his madness. Superman then shoved his entire forearm through the laughing Joker's torso and ripped out his heart, killing him. Superman returned to the prison where the Joker was being interrogated by Batman. Killing her, Superman triggered a nuclear bomb that destroyed Metropolis. He drugged the Man of Steel, convincing him his pregnant wife Lois was the villain Doomsday. The Joker was the first victim of Superman’s rise to power. Joker speaks with a Transatlantic accent (in most incarnations) and claims to be of Irish descent. This made him go mad, as the Joker became the greatest enemy to Batman and to the entirety of Gotham. His wife and unborn child died in an accident, but it was too late for the man to back out of the robbery. The robbery went awry, as Batman attacked, sending the soon-to-be Joker into a vat of chemicals, deforming his look into that of an evil clown. The man had a pregnant wife who he was unable to provide for or care for, and was manipulated into committing a robbery of the chemical factory he used to work at under the alias of the Red Hood. The generally most commonly agreed-upon origin concerns a family man and failed comedian who used to work at a chemical factory. The Joker's history is largely a mystery. There are only two barrels and each interaction destroys one barrel.Main article: Prime Joker (Injustice: Gods Among Us) Standing near them, power chatacters can pick up the barrels to throw them across the screen. Standing near it, gadget characters will jump onto the machine and then leap off of it across the stage.

Standing near it, power characters pick up the machine and toss it at their opponent. There are only two bodies on the carousel and each interaction destroys one corpse. Jumping near it, both character types will grab the corpses hanging from the top of the carousel and throw them down for them to explode on their opponents. Standing near it, gadget characters will jump onto the bumper car and then leap off of it across the stage. Standing near it, power characters will grab the car and slide it across the stage to run over their opponent. In the Story this place comes to Harley Quinn in her hallucinations as she is almost swayed back to evil for the Joker. This is the last remains of the Joker, a nightmarish landcape that is where the clown prince of prime plotted his horrible acts.

Joker injustice 2