The "Emperor Joker" storyline crossed through several comics as The Joker obtains the ability to alter reality, becomes Emperor of the Universe, and set the world into a repetitive loop. Every day, he tortures and kills Batman, brings him back to life, and starts over the next day. Superman must face-off against The Joker to save the fate of Batman and the universe. Collects SUPERMAN #160-161, ADVENTURES OF SUPERMAN #582-583, SUPERMAN: MAN OF STEEL #104-105, ACTION COMICS #769-770 and SUPERMAN: EMPEROR JOKER #1.

Superman Arkham, part one: it's a mad, mad, mad world! / Jeph Loeb ; Ed McGuinness -- Superman Arkham, part two: crazy about you / J.M. DeMatteis, writer ; Mike Miller, penciller -- No axioms / Mark Schultz, writer ; Doug Mahnke, penciller -- Superman Arkham, part four: Supermanamrepus / Yll, EkeoJ, writers ; Onak, pencils -- It's a joker world baby, we just live in it! / Joe Kelly, Jeph Loeb, writers ; Duncan Rouleau, Todd Nauck, Carlo Barberi, Scott McDaniel, pencillers -- The reign of emperor Joker, part six: you say you want a revolution? / Jeph Loeb III, writer ; EMC2, penciller -- The reign of emperor Joker, part seven: life is but a (Very bad) dream / J.M. DeMatteis, writer ; Mike Miller, penciller -- Emperor Joker, part 8: all the world his stage / Mark Shultz, writer ; Doug Mahnke, penciller -- The reign of emperor Joker: part nine, he who laughs last! / Joe Kelly, writer ; Kano, penciller.