Artist Dan McDaid shares a Batman commission on his blog: "Remember that bit in The Dark Knight when the Joker's stood there in the middle of the street, and that crazy old Batman is speeding towards him on his massive bike, and then Batman pussies out because the Joker is too awesome to kill? Imagine that but with Adam West and Cesar Romero... Adding Burt Ward's Robin was my idea -- sixties Batman is nothing without his monkey wrench, after all. "

Check out the original scene below.