Scott Menville, the voice of Robin, never portrayed his character on The New Batman Adventures (1997), Static Shock (2000) or Batman: Mystery of the Batwoman (2003). However, Menville did play a version of Robin on Teen Titans (2003) which turned out to be a completely unrelated iteration.
All three sidekicks (Robin, Nightwing and Batgirl) from The New Batman Adventures (1997) are playable in this game alongside Batman. However, all the cutscenes just feature Batman no matter which player is chosen.
This game is a landmark in the history of DC Comics: it is the first time that a major super-villain has debuted in a video game. This new character, Sin Tzu, was created by comic artist Jim Lee.
In one cut-scene, Batman sees Poison Ivy, Mr. Freeze, Harley Quinn and The Joker imprisoned in Arkham Asylum. These were the four primary villains of the last animated based Batman video game Batman: Vengeance (2001).. Also, as he passes each one, the BGM tracks from the villains' individual settings (or levels) can be heard.
Robin's "taunting" animation sequence is identical to that of a taunting sequence of the Joker's in Batman: Vengeance (2001).