A very minimalist style that starts out with a dark Gotham night and the bat signal and cuts to the Joker robbing a bank and Batman quickly glides in and is standing in front of the joker but his cape covers most of the screen and from POV we see his back then Batman is completely revealed on screen with a smirk and fist and thats it
I'm very confident this could be done anywhere from 8-15 seconds if not then I'll come up with a different design