Trivia: The hotel suite in the Gotham Park Towers is the exact same as the suite in the Hotel Robbins, the hotel where The Royal Flush Gang stayed in "Dead Man's Hand".
Trivia: Terry borrows Dick Grayson's old tuxedo again; we also see Max dressed up.
The explanation that the Invulnerable Man's powers come from his mental resistance to pain seems a little thin: shamans may walk through beds of coals, but there aren't any instances of them surviving 30+ story falls!
Max: I love it! Ghost Girl ends up saving your butt.
Terry: I'd call it a mutual butt-saving situation.
Batman: By the way, what's the creepy lady's power?
Tamara: I don't know, but they call her Bombshell.
Batman: Oh, that's encouraging.
Terry: I'm glad you could come. Makes me look a little less conspicuous.
Terry: Never seen you in a dress before. You look good.
Max: I'm only making this sacrifice for Lobster Thermidor. This is on the boss man.
Terry: Every bite.
Batman: Ford, Carter, Regan, Bush, Clinton...
Batman: Er... I don't know.
Max: Come on, Clinton was the fun one. Then came the boring one.
Batman: They're all boring!
As confirmed by Justice League Unlimited producer Dwayne McDuffie, a younger version of Edgar appears in the JLU episode "Double Date". There he is the son of the super-villain Mandragora, who has extraordinary strength and resistance to damage.
The idea of a Invulnerable Man and a telekinetic little girl was "borrowed" in the Justice League episode "Wild Cards" as members of the Royal Flush Gang. Yet another of the references Justice League makes to Batman Beyond.
Tamara's toy, Pugley, looks awfully like a Teletubby.