Stuck Up, Up and Away / Schoolhouse Rocked

Air date: 6/25/99

Stuck Up, Up and Away: The new girl in school Princess Morbucks wants to be a Powerpuff Girl herself after discovering that the girls have superpowers. However it goes all wrong when the girls are busy trying to stop burglars and then they get away resulting in Princess wanting to destroy the girls.
Schoolhouse Rocked: While at the arcade, the Gangreen Gang run into a truant officer named Jack Wednesday who says that they need school. But while at Pokey Oaks, they cause a lot of trouble that even the Powerpuff Girls get in trouble for fighting back.

Collect Her / Supper Villain

8/6/99

Collect Her: A comic book geek named Lenny Baxter goes too far when he traps the girls himself inside his power packages to complete his collection.
Supper Villain: The girls' next door neighbors all seem very nice until Harold Smith keeps on hearing reports about the Powerpuff Girls helping the held-hostage Mayor escape the clutches of Mojo Jojo.

Birthday Bash / Too Pooped to Puff

Air date: 8/20/99

Birthday Bash: While in prison, Mojo Jojo, Princess, and the Amoeba Boys all come up with plans to destroy the girls. Later on, Him tries a plan of his own.
Too Pooped to Puff: The girls tire of having to do even the simplest tasks for the citizens of Townsville. They instead wait and see if those citizens can destroy a monster without the girls' help.

Beat Your Greens / Down 'n' Dirty

Air date: 9/10/99

Beat You Greens: Broccoli aliens called the Broccoli-Empire want to harvest all the fruits of Townsville and eventually the whole world. The leader hypnotizes all the people of Townsville who eat broccoli.
Down 'n' Dirty: When Buttercup smashes into an oil tank from battling a monster, she is dirtier than Blossom and Bubbles. She then becomes more dirty and smelly throughout the next days because of refusing to take a bath.

Dream Scheme / You Snooze, You Lose

Air date: 9/25/99

Dream Scheme: The Sandman wants to get some sleep, but he can't due to people being awake. So, he builds a machine that will sprinkle the world with his sand and put the whole world to sleep. The Powerpuff Girls go into his dream to give him a fright.
You Snooze, You Lose: Mojo Jojo comes up with the evilest plan he can think of to destroy the girls. It flies out the window when he is sleeping. Not far off from the volcano mountain are the Amoeba Boys who say that the plan's mostly made up of fancy words and numbers. But the girls mistake it for a scavenger hunt's list.

Slave the Day / Los Dos Mojos

Air date: 10/8/99

Slave the Day: After being saved from the train by the girls, Big Billy wants to help them with different tasks including stopping other villains.
Los Dos Mojos: When a construction bar knocks Bubbles out, she then comes back to think that she is Mojo Jojo. Although, Mojo is the one who knocked her on the head.

A Very Special Blossom / Daylight Savings

Air date: 11/26/99

A Very Special Blossom: After Mojo goes crazy in the city, the girls are cleaning up his mess. Blossom then discovers the Pro Excellence 2000 Golf Clubs, a gift the Professor wants for Father's Day. As Bubbles and Buttercup get suspicious, they then try to get Blossom to tell the truth.
Daylight Savings: When the girls are up all night trying to save the city. They are put on a curfew which Ms. Keane has convinced the Professor to do. The girls then have to be in bed by 7:30 even when they were about to go head to head with Mojo Jojo. The Professor was unaware of the time and tries to avoid bad reports about Townsville.

Mo Job / Pet Feud

Air date: 2/13/00

Mo Job: After a yelling conversation, Mojo Jojo and Princess team up to come up with a plan to destroy the girls.
Pet Feud: After the professor creates a new pet Beebo, he tells the girls to only feed him once. When they misunderstand him, Beebo becomes a big monster and starts eating everyone and everything in the city.

Imaginary Fiend / Cootie Gras

Air date: 3/17/00

Imaginary Fiend: The new boy in school who's name is Mike creates an imaginary friend named Patches who starts causing trouble.
Cootie Gras: When love is even at Pokey Oaks, the gross kid Harry Pitt is believed to have cooties! Mojo Jojo then spots the kid and uses him as a defense.

The Powerpuff Girls' Best Rainy Day Adventure Ever / Just Desserts

Air date: 4/28/00

The Powerpuff Girls' Best Rainy Day Adventure Ever: Nobody is on the streets since it is raining. Not even Mojo Jojo can do crimes when it's raining. The Mayor can't go golfing when it's raining. The girls can't even fight crime when it's raining. They then decide to have a pretend adventure right in their bedroom.
Just Desserts: The Smith family gets revenge when Mary Ann tells Harold that it will be the girls who will be sorry next time for ruining their dinner.

Twisted Sister / Cover Up

Air date: 5/26/00

Twisted Sister: The girls become tired after flying around all day trying to save the day. They then create a fourth sibling to the group and name her "Bunny." It all goes wrong when she mistakes the police for the bad guys.
Cover Up: Buttercup believes her lucky blanket gives her the strength to be a good fighter.

Speed Demon / Mojo Jonesin

Air date: 6/2/00

Speed Demon: As the girls travel into the alternate future, they discover that all the citizens even the Professor and Ms. Bellum are against them. They then discover that the future is 50 years later and was taken over by Him.
Mojo Jonesin': A quartet of kids from Pokey Oaks have thoughts about having superpowers like the girls. They then come by a "stranger" who gives them chemical X so they can have the same powers. It's later revealed that the stranger is that monkey villain Mojo Jojo.

Something's a Ms. / Slumbering with the Enemy

Air date: 6/30/00

Something's a Ms.: Ms. Bellum seduces the Mayor to get some time off, but when something seems amiss the Powerpuff Girls investigate the situation and find out that Ms. Bellum is Sedusa in disguise.
Slumbering with the Enemy: The Powerpuff Girls throw a slumber party and invite every girl in their school to come. Mojo steals the final invitation and comes to the party dressed up as Mojesha.