Original air date: 7/2/2004
Production code: PPG-607
Custody Battle: When Mojo Jojo finds out the Rowdyruff Boys are back, but that HIM is now their father, he challenges his rival to a competition to see who is more evil.
The City of Nutsville: Bubbles gets stung in the throat just as a bunch of squirrels starts attacking Townsville.
Custody Battle contains examples of:
- Argument of Contradictions: Mojo and HIM get into this kind of bickering by the end, shouting "Is so!" and "Is not!" at each other over and over. It prompts the boys to tell them to shut up.
- Banana Peel: The Humongous Mecha is done in by the Mayor tossing a peel aside.
- Big "SHUT UP!": The boys give one to both Mojo and HIM when they've finally had enough of their bickering.
- Box-and-Stick Trap: Mojo tried to use a remote control pickle to lure the Mayor into one. HIM ruins it at the last moment by distracting the Mayor with a Zeppelin-esque pickle.
- Continuity Nod: Several events from previous episodes starring the Rowdyruff boys are referenced, including their original creation by Mojo way back in season 1 and HIM bringing them back.
- Even Evil Has Standards: Mojo is disgusted that HIM would hypnotize scientists into sending the Earth into the Sun, which would reduce all of them to nothing. Fortunately, HIM quickly undoes it with a flick of his wrist.
- Evil vs. Evil: Mojo Jojo vs HIM.
- Eviler than Thou: The main plot of the episode is about Mojo and HIM trying to outdo each other in acts of evil.
- Humongous Mecha: Mojo gives one to the boys in an attempt to win them over.
- Internal Reveal: Mojo learns in this episode that the Rowdyruff Boys have been revived by HIM.
- Mind-Control Device: HIM uses a magic pan flute to get a group of scientists to activate a secret weapon that will launch Earth into the sun.
- Jerkass Has a Point: Mojo isn’t exactly wrong to point out how foolish HIM’s plan to hypnotize scientists to send Earth into the Sun is, especially since it will reduce them to ash.
- Naked People Are Funny: The mayor ends up nude again when he crawls through a fence and his clothes are torn off.
- Oh, Crap!: Mojo over seeing the Rowdyruff Boys have been revived.
- "The Reason You Suck" Speech: After HIM insists that causing the destruction of the world is pure evil, Mojo calls the whole thing stupid.Mojo: Evil? How about stupid? Yes, thanks to your foolishness, we will be reduced to nothing! Nothing, like the amount of intelligence inside your head! Nothing, like the amount of respect I get after six seasons on this show!
- Riddle for the Ages: Where were the Powerpuff Girls in this in episode when Mojo and HIM were causing trouble in Townsville?
- Tears of Awe: Mojo Jojo and HIM shed a stream tears of admiration, after a long Eviler than Thou argument, upon learning the Rowdyruff Boys' ultimate goal of simply destroying the Powerpuff Girls.
- Mojo: "Why, that's the evilest thing I can imagine!"
- Taking the Kids: Mojo and HIM both try to prove themselves the more evil (and thus better) father for the boys.
- Villain Episode: Mojo Jojo, HIM, and the Rowdyruff Boys are the focus of this episode, with the Powerpuff Girls only appearing in flashbacks. Even the typical heart-shaped ending is different to reflect this.
The City of Nutsville contains examples of:
- Actually Pretty Funny: As Blossom and Buttercup keep cracking jokes about Bubbles, the Professor noticeably has to resist openly laughing.
- Aside Glance: Bubbles and Bullet over Blossom, Buttercup, and the Mayor making inane guesses about what the problem is.
- Berserk Button: The squirrels aren't evil; it's just that the new statue was covering the pothole where they had stored their food.
- The Bus Came Back: Bullet, the super-powered squirrel from Stray Bullet, makes a return appearance in this episode.
- Irony: For once Bubbles’ squirrel speak is actually needed, and now she can’t use it. Buttercup even lampshades the irony of the situation.
- Laser-Guided Karma: For laughing at Bubbles, Blossom and Buttercup have to clean up the remains of the Mayor's statue that got destroyed.
- Lost Voice Plot: Bubbles gets stung by a bee inside her throat, and loses the ability to talk properly.
- This Looks Like a Job for Aquaman: For once the girls are faced with a situation where Bubbles’ unique power of being able to talk to squirrels would really be useful. Unfortunately, she can’t do it because of the bee sting earlier.
- Tempting Fate: While she and Blossom are cleaning the debris of the Mayor’s statue that was destroyed, Buttercup mentions how it isn’t raining, only for it actually rain much to hers and Blossom’s dismay.
- Zerg Rush: All the squirrels swarming the city.
