There's nothing wrong upstairs In fact, it is Batman 1 (not the first movie, but Batman 1, Tim Burton version). At that time, Batman didn't have the concept of not killing people. Many villains heard him say I was before he died.

Batman, because

I am

Batman, when the clown was killed by Batman at last, there was still a handsome me.

Batman, later became popular in America. No matter how powerful the opponent is, it may be because of a' I am'

Batman's solution, so many Americans now bring Tim's version of Batman's cos, because it was the most invincible endorsement at that time.