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A large, golden, traditional Japanese gate opens to reveal a monstrous, grinning face with green hair and a purple, winged body, identified by on-screen text as Joker and Harley Quinn, who then scream with their mouths wide open before the screen cuts to black. The scene is set against a dark, purple-hued background with vertical light streaks, and the sequence ends with a shot of a large, mechanical robot with a traditional Japanese building on its back.