reveals on television that he's planted several bombs in Las Vegas and the Western Animation
/Justice League have to try and stop him while his superpowered minions, the Royal Flush Gang, stall them. After all the bombs are disabled, the Joker reveals his true plan: to use one of the Royal Flush Gang's member to use her telepathic powers to make everyone watching the footage of the League disabling the bombs insane. However, Batman finds the Joker and gets the last member of the Royal Flush Gang to use her powers on him before leaving the scene. The episode ends with Hawkgirl and Green Lantern finally getting together.
- Absentee Actor: Wonder Woman and J'onn, though they are seen in Joker's photo of the team.
- Actor Allusion: The Teen Titans cast voice Joker's Royal Flush gang. While not exact, their parts have obvious similarities to their Titan characters.
- Batman Gambit: Batman makes Harley jealous of the attention Joker is paying to Ace, which makes her stomp all the way back to his studio hideout. Batman probably wasn't expecting that punch, though.
- Belligerent Sexual Tension: Lampshaded by the Joker, of course.
"Whew! Is it just me, or is there something going on between those two?"
- The Big Damn Kiss: Shayera and John at the end.
- Brick Joke: The old woman Joker pesters at the beginning of the episode appears again when Shayera and John kiss at the end.
- Comically Missing the Point: The old woman Joker talks to fails to realize that when he asks if she's scared, he's referring to the bombs.
- Don't Explain the Joke: When no one laughs at his volcano joke, the Joker rather hypocritically violates this.
- Do Not Adjust Your Set: Subverted. Rather than invade the airwaves as usual, Joker buys airtime on multiple channels under an alias, and other networks pick up his broadcast because he's got the best footage.
- The Fourth Wall Will Not Protect You: When the Joker's true plot is revealed, the screen fades to black as Ace continues to stare at you.
- Genre Blindness: After all these years, Harley didn't expect Batman to follow her back to the Joker's hideout. Joker even calls her on this.
- Genre Savvy: Joker's speeches to the screen are unsettlingly so, especially when it turns out that his plan is to use the star power of the Justice League to get as many people watching as possible.
- Insanity Immunity: The Joker announces that he has this in regards to Ace's powers. He's either lying or at least partially wrong.
- Mood Whiplash: Joker turns on the charm to appease a jealous Harley and then backhands her for not realizing that Batman surely followed her.
- Race Against the Clock: This is the premise of the episode.
- Screw This, I'm Outta Here: The minute that Superman points out that everyone will be killed should a bomb go off, King runs for it.
- Shipper on Deck: Played with. First, the Joker points out that Hawkgirl and Lantern obviously have a thing for each other. Then he subverts it, saying that he wouldn't allow it on his show. Then, at the end, when they kiss, the old woman from earlier comments that "It's about time!"
- Show Within a Show: Basically, it's the episode's Framing Device.
- Stealth Pun: the Joker's most dangerous weapon is the telepath Ace. How else would you call it but he's got an ace up his sleeve.
- Unexplained Recovery: Joker is left catatonic by Ace at the end of the episode, but he obviously got better eventually. This is in-keeping with many previous appearances, however.
- Would Hit a Girl:
Joker: And there's one other thing you're not getting.
Joker: That you led Batman right to my doorstep! (smack) Tough love. Very effective. Don't you think so, Batman?
- You Meddling Kids: Joker, of course, includes an adorable shout-out. "And they would've gotten away with it too, if it weren't for me meddling with the kids!"