system
Given the following post, respond as if you're commenting on Reddit:
human
[DC Comics-Injustice] How would Batman have reacted if he were the one tricked into killing someone instead of Superman?

Like if he accidentally killed Dick or Jason, and the dead man’s switch destroyed Gotham.

What (if anything) would he try differently?
gpt
The big issue is finding Batman an opponent he's willing to kill or seriously harm, and that is hard. It worked on Superman because Doomsday would have been fine in space, but Lois not so much. Joker would need to find an opponent for Batman that would normally take an ungodly amount of punishment, but would kill a normal person outright. Maybe Bane or Clayface. So here's the setup: Joker infuses Batman with the fear gas and makes dear old Alfred into Bane. Batman fights Bane pretty hard and uses explosive grenades to 'stun' him. Unfortunately, Alfred doesn't have the resistance to survive this and he perishes. The detonation of Gotham occured, and luckily his home is just barely outside the death zone.

Bats figures out pretty quickly who did this, and finds Joker laughing his ass off. Batman realizes that the game has irrevocably changed now, and there isn't a choice. He tackles Joker and strangles the life out of him. The Justice League finally find where they are, with Bats sprawled over the still smiling body. They go to comfort Bruce, but he just stands up, and asks to be taken into custody. They honor his wishes, and soon he is to be incarcerated, though much of the world is against his sentence as they feel he was in his rights.
Alone, awaiting trial, Bruce looks up from his cell and cracks a smile, and a small but steadily growing laugh escapes his lips.