The title of this episode is a reference to the film Batman Returns
Final appearance of Batgirl.
This is the only episode in which Robin and Catwoman are in the same episode.
Batgirl: If you let him fall, you're no better than he is.
Catwoman: Oh, grow up!
Batgirl: So what’re you going to do? Leave us hanging over one of these vats with acid burning through the rope?
Daggett: (laughs) If there’s one thing I’ve learned over the years, it’s that you crime-fighting types are very resourceful. So I’ll just have my men shoot you, and throw your bodies into the vats.
Catwoman: You should have said 'yes.'
Batgirl: If I had, I'd be a rat with wings.
Catwoman: Bats are just mice with wings, little girl.
Batgirl: If you're innocent, come down to the police headquarters with me and tell them your story.
Catwoman: That's also not my style.