The movie the Penguin watches in the beginning contains a heist scene in Venice, very much reminiscent of the movie 'The Italian Job'.
Robin's collapsible Bo-staff is a staple of Robin III (Tim Drake). It was given to him in his first comic book mini-series by Lady Shiva who trained Robin in its use.
In this episode, Batman defeated Bane with no problem at all. So, why is it in "Traction" he couldn't do the same thing to Bane? (Reply: Because it wasn't until the end of that episode that Batman discovered electricity can short out Bane's venom infusion device)
Here, we see the introduction of Robin's collapsable bo staff and bird-a-rangs, the latter of which were first created for his Teen Titans counterpart. Both here and in Teen Titans, the bird-a-rangs are a deliberate homage to the preferred weapon of the leader of Science Ninja Team Gatchaman Ken (in the Battle of the Planets, Mark). The homage continues in Robin's cape design including a split at the back similar to those of Gatchaman's bird-based heroes.
The film's ending that Penguin was watching at the beginning of this episode differed when both he and Killer Moth/Charaxes crashed through the same movie theater. When the movie's eyepatched character says, "Now that is a blueprint for success," he's clearly on his boat with his team of criminals, but near the end of the episode, the same character is shown saying the same quote in a different background. (Reply: The part Penguin dropped in on was probably a different part in the movie. Because that line was probably that character's catchphrase, he would naturally say it more than once in the movie)
It's funny that Ragdoll suggests the team name "Villains United," considering that among Penguin's cadre, the Ragdoll character was the only one that was on the team-of-focus in that book.
Killer Moth was the first costumed supervillain ever faced by Barbara Gordon as Batgirl in the comics.
He also appeared as the villain in the short and never screened pilot for a proposed Batgirl spin-off show with Yvonne Craig in 1967. There, he was played by Tim Herbert".
Originally, Killer Moth was a fairly formidible foe in the comics, a sort of "Anti-Batman" with a Mothmobile, Mothsignal, and coming to the aid of villains harassed by the police and Batman. His name was "Cameron Van Cleer".
In the 1990's, the comics retconned him to having always been a loser comedy-relief villain whom no hero or villain takes seriously, whose real name turns out to be "Drury Walker". Then, he became moth-monster Charaxes and was killed in the recent "Infinite Crisis". A new Killer Moth in the original costume has since appeared. In the Teen Titans series, Killer Moth was one of the regular villains. He looked part moth the same way Killer Croc looks part croc here. Moth's daughter, Kitten, was taken to the prom by Robin because Killer Moth threatened to blow up the city if he didn't.
Penguin: I love this movie!
Man: Do you mind?! We can't see!
Penguin: What I mind is this backseat yakkity-yak while I'm trying to watch a movie!
Batgirl: Sorry, circus boy, but you can't beat Olympic gymnastics for teaching acrobatic skills!
Robin: How many times have you performed a triple aerial somersault?
Robin: Fifty-feet up, without a net, over hungry lions?
Batgirl: I don't know if they were hungry.
Killer Moth: Listen, I can help you guys. I got a lot of skills.
Penguin: Do enlighten us, Moth.
Killer Moth: Well ... I've got stealth skills, code breaking skills, karate skills.
Penguin: What about coffee-making skills? I take mine black, two lumps.
(As Bane breaks into a bank vault)
Batgirl: Let me guess, Bane; ATM ate your card?
Batgirl: You'll be 40 before you get to drive the batmobile!
Robin: At least I'll get to drive it!
Robin: Of course, leaving yourself so exposed like that is completely reckless!
Batgirl: Oh, yeah? Who crashed the giant moth monster into the roof?
Firefly: (to Killer Moth) Nice wings. Granny make 'em?
Ragdoll: Now, now. Give the man a chance. What are your special talents? Attraction to bright lights? Eating holes in sweaters?
Killer Croc: So, we still need our fifth.
Penguin: Recruitment is my job, thank you very much! And besides, they all said "no" already.
Penguin: (to Killer Moth upon meeting Robin) Looks like I'm not the only one with a lackey. (laughs)
(Robin starts attacking Penguin)
Robin: Who's the lackey now, huh? (continues to beat him up)
Killer Moth: Sir?
Batgirl: (to Batman about Robin) You, uh, might wanna cut back on his sugar intake.
Batgirl: (shocked) Bruce Wayne! Knew it. (to Robin) And that makes you Dick Grayson.
Robin: (after unmasking himself) And you are?
Batgirl: Sorry. As a not quite official freelancer, I have to go the extra mile to protect my privacy.
Batman: She's Barbara Gordon.
Robin: Gordon?! As in the Commish's kid?!
Movie Mastermind/The General: Report. What's your status?
Movie Thief: Still single. Haven't met the right girl, I guess.
(Upon entering the batcave for the first time)
Batgirl: A cave? Really milking this whole creature-of-the-night thing, huh?
Firefly: What if we called ourselves the "Gotham Gangsters"?
(Regarding Batgirl as he is practicing with the practice robot in the batcave)
Robin: Hey, I'm not the problem; she's the one flying solo.
Batgirl: (to Batman) Uh, who's the pixie?
Robin: Robin, official partner to The Dark Knight.
(Upon seeing Killer Moth's transformation)
Robin: Whoa, what happened to him?
Batgirl: I'm going with: Hit by a radioactive moth ball from outer space.
(Suggesting a new team name)
Ragdoll: How about "Villains United"?
Penguin: How about you shut up?
(Looking at Robin and then up at Batman)
Batgirl: So, you got a new partner. It's because I changed the presets on the Batmobile radio, isn't it?
UK airdate: 16th January, 2007.
Batgirl's first appearance since "Thunder".
Joaquim de Almeida does not reprise his role of Bane. Instead, Ron Perlman voices him in this episode.
This episode is the first to feature six villains!
Bane, Riddler, the Joker, and Mr. Freeze were all considered being a part of 'Team Penguin'. Unfortunately, Bane was taken down by Batman, Robin, and Batgirl. Joker, Riddler, and Mr. Freeze each declined Penguin's offer.
Beginning with this episode, all three crime fighters now know the secret identities of one another. Batman finally reveals his secret identity to Batgirl, who then logically deduces Robin is Dick Grayson, and (despite her attempt to not reveal hers) Batman tells Dick that she is Barbara Gordon.
'Team Penguin' consists of Penguin, Killer Moth, Ragdoll, Killer Croc, and Firefly.
Killer Moth also appeared in Cartoon Network's Teen Titans, and due to the show ending, the character was freed up to use here.
Killer Moth is introduced.
The Penguin, Bane, Killer Croc, Firefly, and Ragdoll return.
Injustice Gang/Injustice League: Team Penguin, a group of formidable foes of the Batman, can be related to either of these two groups of super-villains.
n/a: Napoleon Dynamite
Killer Moth names off what skills he has. This is a reference to Napolean Dynamite, who lists off all the skills he wants.
Movie Safecracker: McGuffen is secured.
A McGuffen is a term given to an object in a movie, television show or piece of writing that serves no purpose other than propelling the plot forward. One prime example is the "Grays Sports Almanac" from the 1989 film Back to the Future Part II.
The movie that Penguin watches seems to be based on both The A-Team, and part of the 2003 remake of the 1967 thief film The Italian Job. Such parallels include the boat chase and the safe-cracking specialist. There also may be hints of the recent Ocean's Eleven remake, particularly in a villain who seeks to recruit the city's top thieves for a grandiose heist.
Explosion: Batman & Robin
When running from the exploding barrels, Batman is in the center, Batgirl on his right, and Robin on his left. What's more, they are covered almost completely in shadow. The trio did the same thing in front of the Bat signal at the end of the infamously lackluster 1997 film Batman & Robin.
Comics: Killer Moth
Killer Moth's transformation from loser villain in a geeky costume with a cocoon gun to monstrously dangerous insect creature (who used the name "Charaxes") sort of mirrors events in the "Underworld Unleashed" comic series of 1995. However, the reason there was a deal with a demon, rather than a mutagenic compound.
Penguin: The stately mansion of Gotham's own software billionaire, Robert Howard.
A reference to the 60's TV show, which invariably described Bruce Wayne's home as "stately Wayne Manor, home of millionaire philanthropist Bruce Wayne."
The Penguin: There it is – the stuff that dreams are made of.
Penguin is alluding to another jewel-encrusted bird - the Maltese Falcon, best known from the 1941 movie of the same name starring Humphrey Bogart as detective Sam Spade. Spade decribes the fabled Falcon in the same terms.
Ragdoll: How about "Villains United"?
Villains United was a six-issue mini-series which tied into the 2005 mini-series, Infinite Crisis. In Villains United, Lex Luthor gathers many supervillains to form a huge Secret Society of Super Villains as protection from superheroes. Also, in the mini-series, Ragdoll was one of the members of the Secret Six that rebelled against Luthor's group.