The Riddler is a criminal mastermind with an obsession for puzzles and conundrums. Riddler can create the most complicated and creative questions as clues for the police to find him, but most of the times, they are always left clueless with his puzzles. However, his genius mastermind is only matched by Gotham's vigilante, Batman, who always finds the right answer to Riddler's puzzles and stops the criminal.