John Glover is also best known for his work as Lionel Luther in Smallville another show based on another DC comics super hero telling the early Adventures of Superman.
John Glover who does the voice of the Riddler also has a small part in 1997 live action movie Batman and Robin.
In the scene where Riddler and his men are at the powerplant, the tied-up security guard's shadow is shaped like a question mark.
When Batman and Robin reach the center of the maze, the Riddler's eye mask and gloves are the correct purple hue. Yet when they show it again a few moments later, the gloves and eye mask are now a washed out greyish purple color.
Batman: I'll find Mockridge if I have to tear this place apart, Nygma!
Batman: (about the Riddler's maze) I don't know what's worse – the traps or the puns.
The Riddler: You have eight minutes, gentlemen, then Mockridge becomes the only good corporate shark – a dead one.
Batman: Mockridge may have his money, but he won't be sleeping well. How much is a good night sleep worth? Now there's a riddle for ya!
This episode is episode 12 on the Batman: The Animated Series Volume 2 DVD.
This episode along with "Riddler's Reform" was released on VHS as The New Adventures Of Batman & Robin: Riddler.
The sound effects in Edward Nygma's videogame are the same sound effects used in the classic NES Super Mario Bros. games of the 1980's.
This episode marks the first appearance of the Riddler.
Nygma's dispute with his former employer may have been an allusion to video game company Atari's policies in the early 1980s. At that time, Atari would not credit its programmers for their work nor give them royalties if the game sold well.
As Nygma enters the 8th Floor at the start, J. Snow and T. Burgio are names on two doors before his. They refer to storyboard artist Jeff Snow and Vehicle and Prop Design Trish Burgio.
Oklahoma! Batman: When is a minotaur's owner as high as an elephant's eye? The operative phrase of that riddle "as high as an elephant's eye" refers to a line in the song "Oh What A Beautiful Morning" from the Rodgers and Hammerstein's musical "Oklahoma!"
S 3 : Ep 15
Aired 9/15/95 (22:00)
S 3 : Ep 14
Aired 9/14/95 (22:00)
S 3 : Ep 13
Aired 9/13/95 (22:00)
S 3 : Ep 12
Aired 9/12/95 (22:00)
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