R Exclusive, only available at Toys R Us Canada. Who is the impractical joker with a key to crime? With a maniacal laugh; a twisted sense of humor; and penchant for setting cunning traps; The Joker is one of Batman's most notoriously fiendish foes. But when it comes to putting an end to The Joker's crime sprees; Batman knows firsthand that The Joker's jokes are never very funny... in the end.