Episode 1
Arale's Birth / Hey! Friends
April 8, 1981
Senbei creates Arale and takes her on a test-run as a convincing little sister. However, she's not as tuned-up as her creator would have expected. / Arale is enrolled in school, and tries to win over the "tough kids" Akane, Taro, and his little brother Peasuke. Meanwhile, Senbei gets a crush on his creation's homeroom teacher, Midori Yamabuki.
Episode 2
Arale Goes to School! / It is! ... not there
April 15, 1981
Arale's superhuman strength gets word around the school, and all the clubs want her to join them. / Arale comes home to tell Senbei that an integral body part is missing on her body, to which the doctor invents x-ray specs for definitely-not-perverted research purposes.
Episode 3
The Big Time Slipper Adventure / What Egg is This?!
April 22, 1981
Senbei tests out his newest invention: an alarm clock-shaped time machine called the Time Slipper. On its inaugural voyage, Arale gets lost in ancient Japan. / Arale and friends use the Time Slipper to go back to the days of the dinosaurs, and find a mysterious egg.
Episode 4
Huh?! Is it a Boy? Is it a Girl? / Gatchan the Courier
May 6, 1981
The babylike creature that hatched from the prehistoric egg, Gatchan, is the subject of several discoveries for Arale and Senbei. / A day in the life of Gatchan, as they go about town interacting with the Penguin Village citizens.
Episode 5
Friends With a Bear!! / New Invention! Dekachibi Ray Gun
May 13, 1981
Arale rescues a bear, but trouble is afoot when her new friend is to be released back into the wild. / Senbei creates a raygun that can make things bigger or smaller than their intended size. Naturally, Arale causes some mischief with it.
Episode 6
The Teacher is Coming! / Arale Kidnapped!
May 20, 1981
Arale tells Senbei that her teacher is coming for a home visit. Knowing he has to look his best for Miss Yamabuki, he creates a barber robot to spiff him up. / Criminal Joe Dunn holds Arale and Gatchan hostage, but doesn't realize that he's underpowered compared to the two little terrors he's kidnapped.
Episode 7
Charging Arale-chan
May 27, 1981
A day in the life of Arale, from her police car destructions to her school life, and home again after accidentally eating whiskey bonbons.
Episode 8
Donbe Story
June 3, 1981
The tricky fox Donbe uses his kitsune powers of transformation to pull pranks on the town. When he runs into trouble, Arale and Senbei must put their differences aside with the critter who caused them too much trouble in one day.
Episode 9
The Great Strawberry Panties Plot
June 10, 1981
Arale reveals to Senbei that Miss Yamabuki wears strawberry-patterned panties. In a fit of pure horniness, he enlists the help of the animals of Penguin Village to get him a peek.
Episode 10
Ah! Earth SOS!!
June 17, 1981
The alien King Nikochan and his assistant abduct Arale and Gatchan, with the expressed intent to destroy the world. However, Gatchan's appetite for metal causes their ship to crash, which leaves the two invaders seeking help from the earth people.
Episode 11
Teketeke Children / Scary Scary Policewoman
June 24, 1981
Arale meets five-year-old Kinoko, a self-professed hip girl who only loves the most in-style of things. / After being accosted by a threatening female police officer, Senbei creates an invisibility potion to evade her.
Episode 12
Transform Ponpoko Gun / Arale Flies in the Sky!
July 1, 1981
Senbei creates a tanuki-themed raygun that can turn anyone into anything the wielder desires. In Arale's hands, trouble ensues. / Arale wants to fly in the sky like Gatchan, so Senbei creates a flying machine for her. But, in her soaring endeavors, she inadvertently bugs Raijin, the deity who creates storms and thunder with his drum set.
Episode 13
The Terrifying Good Girl
July 8, 1981
Arale, misinterpreting Miss Yamabuki's lesson on being a good kid, spreads chaos with the intention of goodwill.
Episode 14
Hero Suppaman
July 15, 1981
Kento Kuraku is no ordinary man. After he eats his favorite pickled plums, he turns into Suppaman, a not-very-helpful superhero who causes more problems than solves. He, in turn, catches the attention of Arale.
Episode 15
Arale's Errand / Wai-Wai Wildland
July 22, 1981
After seeing Akane's bra in the changing room, Arale wants one for herself, not realizing that she doesn't need it. / Arale and pals take an excursion to safari park Wildland, but get into some trouble when their jeep breaks down.
Episode 16
Living for Tomorrow! / Arale is Akane!?
July 29, 1981
Senbei invents a camera that can take pictures of the future. When Arale plays with it with her friends, they grow suspicious about the fact that she never seems to age in any of the pictures. / Arale and Akane swap lives for the day.
Episode 17
The Monsters' Night of Fear
August 5, 1981
Trampire, a buxom bloodsucker, along with her assistant Franken, terrorize Penguin Village in search of her favorite treat. When she gets to Arale's house, however, the tables are turned.
Episode 18
The Fairy Tale Machine / Bibiruman the Hitman
August 12, 1981
Senbei's newest invention allows the user to enter books and interact with the characters as part of the story. When Arale enters the world of Momotaro, her decisions cause the tale to go wildly off-course. / Joe Dunn hires hitman Bibiruman to take out Arale, but her would-be killer gets sucked into her King Kong book with the Fairy Tale Machine.
Episode 19
Arale Swims in the Ancient Past
August 19, 1981
Arale uses the Time Slipper to go for a swim "a long time ago". When she takes too long to return, Senbei starts to get worried.
Episode 20
Kinoko-chan Leaves Home
August 26, 1981
After Kinoko's dad eats the strawberry off her cake, she, in a fit of anger, decides to run away and become a juvenile delinquent.
Episode 21
The Great Space Date Escapade
September 9, 1981
Senbei, Arale, and Miss Yamabuki take a trip to the stars in Senbei's spacecraft. However, his decision to not install a bathroom ends up getting Yamabuki kidnapped on an alien planet.
Episode 22
Senbei Dumbfounded
September 16, 1981
On the return back from last episode's space adventure, Senbei discovers that Akane and Taro have grown old. They say it's been 50 years since he left the planet, but could there be more to the story?
Episode 23
Arale's Hoyoyo Date / Bye-bye Mecchanko Power
September 23, 1981
Arale goes on a date with the tough Banchou. Her definition of a date is just holding hands, though. Very tightly. / Senbei tries to scale back Arale's strength as to not cause any more destructive trouble.
Episode 24
Arale's Big Change!!
September 30, 1981
After a cricket leaps into Arale's mouth, her personality changes, giving her much more common sense and manners. This starts to freak everybody out.