- Alternate Character Interpretation: Batgirl is the protector Gotham needs, even if she's a tad dictatorial? Or she exhibits the worst traits of the post-Frank Miller Batman and she's a paranoid, superhuman-hating jerkass who is more concerned with taking other heroes down and keeping them out of her private kingdom than ensuring that the Joker and other criminals stay behind bars?
- Foe Yay: In a twisted mirror of the main Joker's obsession with Batman, this Joker is just as lovingly obsessed with Batgirl, if not even more so. And as usual, it is entirely one-sided.
- Harsher in Hindsight:
- In Action Comics #275, Kara dreams that Superman never turned up and she lived her cousin's life. In this work, written 37 years after, Superman never turned up and Supergirl was world's greatest hero... because Lex Luthor found Kal-El's rocket and murdered the baby.
- The Joker having a crush on Batgirl was a disturbing concept back then, even if it was played for laughs but Death of the Family turned it into sheer nightmare fuel.
- Hilarious in Hindsight:
- If someone wasn't a fan of the dark tone of Batman v Superman: Dawn of Justice, reading a story where Supergirl and Batgirl meet, and after Supergirl manages to reason with the paranoid, parahuman-hating Batgirl, they team up to take Lex Luthor down -and eventually befriend each other- instead of coming to blows is heartening.
- The Joker saying he is not behind money and he can't be bought reminds of a certain Batman film
- Jerkass Woobie: Batgirl isn't nice at all. However her parents got murdered in front her when she was a child.
- Magnificent Bastard: Lex Luthor is smart enough to deceive and manipulate everyone, he plans for most of eventualities and he's capable of talking his way out of most of situations.Hamilton: You always did turn adversity to advantage, Lex What about the tape? If I transmit this, and Joker goes to work for you, it'll be proof you collude with known criminals.
Luthor: Not at all, Emil. It'll be proof of my ability to persuade a criminal to turn from his ways, and my willingness to get a win-win equation out of any situation.
- Moral Event Horizon: Luthor crosses it when it was revealed that he murdered baby Kal-El. And he feels absolutely no remorse, because "it was only an alien".
YMMV / Elseworld's Finest: Supergirl & Batgirl