The Joker: "Do you want to play a game, do you, Batman? Save the city or catch your greatest enemy."
Batman: "You think you're my greatest enemy?"
The Joker: "What drives you to one-up the way that I do?"
Batman: "Superman."
The Joker: "Superman's not a bad guy!"
Batman: "I like to fight around."
The Joker: "Are you seriously saying that there is nothing special about us?"
Batman: "There is no us. Never will be. Now, I gotta diffuse that bomb."