* In "Joker's Favor," the Joker forces Charlie Collins, an average schlub, to do the villain a favor. What is said favor?
* In "Riddler's Reform," the Riddler creates a puzzle box toy that becomes the rage in Gotham City. How much does said toy cost?
* The Riddler, according to his origin episode "If You're So Smart, Why Aren't You Rich?", was originally a computer game designer who designed what classic computer game?
* In "The Laughing Fish," the Joker uses his special chemical to turn fish into "Joker-fish" that sport a hideous grin. He intends to market these fish as a food chain. Which of these fish names is not actually part of his line?
* Bruce Wayne and Harvey Dent used to hang out together at what club that is reported to be closing down in the episode "Second Chance?"
* Which of these comic villains never appeared on the show in any form?
* Even minor villains sometimes make return appearances. Which of these bad guys was strictly a one-time villain?
* In "Fire from Olympus," Maxie Zeus refers to Batman as what Greek god?
* Bruce Wayne got married in "Chemistry." Who was his bride?
* At the end of "Christmas with the Joker," Bruce decides that he really DOES enjoy what Christmas perennial film?
* What is the name of Barbara Gordon's teddy bear?
* In "A Bullet for Bullock," Harvey Bullock is the target of a murder attempt. Who turns out at the end to be the attempted killer?
* What is the name of Ras al Ghul's son?
* Which of these is NOT the real name of a Bat-villain?
* What is the name of Mr. Freeze's wife that he desperately loves?
* The villainous Scarface is frequently aided by the extremely muscular (but no bright) henchman named Rhino. What is Rhino's real name?
* Which of these people never performed a voice for the show?
* Sometimes it's hard to keep voice actors on. Which of these characters did NOT have his or her performer changed as the show ran on?
* What is the name of Selina Kyle's cat?
* Which of the following characters has been portrayed by the most voice actors?