* The Joker's re-enactment of [[Film/StarTrekIITheWrathOfKhan KHAN!]] leading up to Deathstroke telling him to shut it or he'll gut him. What tops it all off is the Joker's smile afterward.
* There's something about the absurdity of an unconscious Scorpion sitting in the passenger seat of the Batmobile as Batman drives to Gotham.