War of Jokes and Riddles", Cluemaster is seen as a member of Joker's team. After Batman joins the war on the side of the Riddler and begins taking out Joker’s allies one by one, Cluemaster suggests to Kite Man that they let themselves be beaten rather than flee and face the wrath of both kingpins. However, he is then gassed by the Scarecrow, one of Riddler’s allies, and taken out of the conflict. Powers and abilities Unlike most of Batman's villains, Cluemaster is completely sane, which gives him a unique relationship with Batman. Cluemaster has no metahuman powers or abilities. He has a number of plasti-glass pellets attached to the front of his uniform. The pellets contain various offensive weaponry including: blinding incendiary flares, smoke, incapacitating gas, and explosives. Other versions World Without Young Justice In the alternate timeline of World Without Young Justice, Arthur under the title "Crypto-King" is featured. When his wife Crystal decided to turn him into the Gotham City Police Department, he forced her to overdose on her favorite pills. On the night of his big scheme, he found that his daughter Stephanie was waiting for him and planned to have him overdose. Realizing that she could physically force him to overdose, he tried to run away. When Batman came to intervene, she used to opportunity to shove the pills down his throat, killing him. Flashpoint In the alternate timeline of the Flashpoint event, Cluemaster is imprisoned in military Doom prison. He is subsequently killed by Eel O'Brian who hides inside Cluemaster's body killing him to break Heat Wave out. In other media Cluemaster appears in The Batman, voiced by Glenn Shadix as an adult and by Kath Soucie as a child. Introduced in the episode "Q&A", this version was a spoiled, self-entitled, yet brilliant prodigy with an inferiority complex and Peter Pan Syndrome. After losing on the game show Think Thank Thunk following a twelve-week champion run and a failed attempt by his mother to sue everyone involved on the grounds that the show was rigged, Brown dropped out of school and secluded himself in her home for the next twenty years to plan his revenge. All the while, he subsisted on the lifetime supply of Kremelo chocolate bars he won on Think Thank Thunk and became obese to the point where he can withstand physical attacks without taking damage. In the present, Brown hires