Here are many short films that appeared on Nickelodeon, Nicktoons and Nick Jr.
Toons From Planet Orange (1998)
id="Spider_and_Fly">Spider and Fly
This was a series of clay-animated shorts about a spider trying to get a fly. The fly always outwits him, however. Thirteen shorts were produced by Elm Road On The Box; the first one was also shown during the Nickelodeon TV special "Toons from Planet Orange".
Snout
This is about animals with snouts who dance to music. They babysit two baboon twins as the mother comes in on chaos. Three shorts were produced by Fudge Puppy Productions; the first one was also shown during the Nickelodeon TV special "Toons from Planet Orange".
Ego from Mars
This is about a group of aliens and a robot who try to take over the earth, but fail at doing so. Created by Mark Gravas.
Frog's Life/Vida De Sapos
Two frogs attempt to cross a busy road, but the big frog gets run over despite the little frog's warning. Produced by Metrovisión Post Producción.
Nick.com Toons (2000)
The Boy from Woy
Produced by MudFish Studios, this is about a boy with a rubber glove on his head who has a magical remote control that can stop, fast forward, and rewind things. The premise is similar to that of the 2006 film Click.
Jerk Chicken & Fish Out of Water
Produced by Pitch Productions, this is about a chicken who becomes a police officer and a fish who just sits there. The chicken pushes people around, and the fish saves the day when he swallows the "psycho pooch" that the chicken is scared of.
Bobby the Lizard Boy
This is about a half iguana/half boy, with a babysitter named Laura. Bobby attempts to foil her every plan, and he ends up eating her.
Ernie & Trafalgar
Ernie's dog Trafalgar needs to "water the tree," but just crossing the street to get to the tree turns into an adventure for him. While waiting for the light to turn green, Ernie's imagination runs wild, and a giant mutant plant spells relief for Trafalgar. He almost gets eaten by a shark, but Trafalgar manages to save him in his misery.
Monster Vs Monster
A brother and a sister make monsters in their imagination during bedtime to fight one another.
Music Monster
This one-shot sketch is about a monster who sings and tries to get some milk.
The Little Freaks
This is a one-shot sketch about a trio of friends that have various abnormalities (one girl has three eyes, there is a pair of Siamese twins, and one boy has a brain in a glass), and they save the world from a villain named Noface. This short was also aired on an episode of KaBlam!
Short Films by Short People
In 1996, Nickelodeon debuted a series of short films made by the fans themselves. It reran two years after its debut and often shown in the afternoon on Nickelodeon and Nick Jr. as well to fill in time. Most of the shorts are considered lost. The Paley Centre for Media had to compile a list to confirm their existence. Surprisingly, some were found. Most notably Innie and Outie, a short film about two friends who goes to see a movie for the day. The faces are used in the form of belly buttons and animate like drinking.
KaBlam!
Shorts from the KaBlam! series such as Sniz & Fondue, Action League Now!, Prometheus and Bob, Life with Loopy, and sometimes The Off-Beats. Life with Loopy and Prometheus and Bob are the most played. One of the most obscure shorts on KaBlam! was called Stewy the Dogboy. Stewy the Dogboy was planned for its own series in 2000, however, due to Disney's Teacher's Pet premiering at the same time, it was cancelled by Nickelodeon due to both shows having almost the same plot and similarities. This would eventually fall into obscurity.
Action League Now!
Sniz & Fondue
Life with Loopy
Prometheus and Bob
Oscar's Oasis
Doodlez
Tortellini Western
Leader Dog
Edgar and Ellen
Schoolyard Safari
Foul Facts
Aired in 2002, this short consists the narrator teaching the kids about seemingly gross bodily fluids and unwanted symptoms, which include mucus, warts, dandruff, etc. It lasted for 6 episodes. It re-aired on Nicktoons in 2011.
The Presentators
A stop-motion series about 3 presentators who host Nickelodeon. It was produced by Aardman Animations in 2003.
Bin Weevils
Bin Weevils are ants who go on strange adventures. The shorts have been the basis of an online game that centre on the main characters, Tink and Clott. The game also includes facts about the world of Bin Weevils. They aired 12 shorts and 13 full length episodes. Bin Weevils now is a popular children's socialing networking site.
Purple and Brown
Jimmy Neutron
Produced by O Entertainment in 2001, these were shorts of Jimmy Neutron that were shown before the movie started. Some episodes include Hyper Corn, Sea Minus, and Ultralord vs. the Squirrels. Several of these shorts were made into games on Nick.com.
Astrology with Squidward
Astrology with Squidward was a series of shorts that ran from 2000 to 2001 on Nickelodeon. Produced by United Plankton, it featured SpongeBob SquarePants' octopus Squidward Tentacles, giving humorous horoscopes, relating the Zodiac signs to characters on the show.
The Crimson Chin & Cleft, the Boy Chin Wonder
Produced by Frederator Studios in 2002, these shorts are like a moving comic book. It features characters from The Fairly OddParents, which follows the Crimson Chin and Cleft, the Boy Chin Wonder as they fight crime in the Chin's comic book. These also appear as "we'll be right back" and "now we're back" signs in early Fairly OddParents episodes.
Oh Yeah! Cartoons
All of these are animated short films from Nickelodeon's animation showcase Oh Yeah! Cartoons, including the birthplace of The Fairly OddParents, ChalkZone, and My Life as a Teenage Robot.
Napman
Aired in 2003. It is about a man who is always sleeping on his cot, and is thus called "Napman." He travels by having his dog pull his cot along, Billy the dog always saves the day, but Napman gets the credit. However, Billy is usually just doing dog things, like chasing a duck/cat or running towards a tree to "do its business". Aside from the opening theme, the only dialogue in the shorts is at the end, when one or more people praise Napman by saving, "Nice work, Napman!"
Very Aggressive Vegetables
These shorts are about kids insulting a vegetable, and then the vegetable comes to life and goes crazy, destroying snacks or yelling at the kid. Six 30-second shorts were produced for Nickelodeon Australia by Fudge Puppy Productions in 1997.
Balinese Slapping Fish
Also produced by Fudge Puppy Productions in 1998, it is basically about an orange fish and green fish who slap each other. Usually, something is going on and the two fish randomly appear. Most of the shorts (except for a Top Five short) ends with them on an image with the title, which is said by a group of kids.
Hot Chunks
These shorts star Angus King as a variety of characters. Thirteen minute-long shorts were produced for Nickelodeon Australia by Fudge Puppy Productions in 1998.
TechNick
In these shorts, a teenager answers questions about computers and the internet. Nine shorts were produced by Robert Zammarchi and Big Blue Dot in 1999; Robert Zammarchi posted all nine shorts to his "ZamBam" YouTube channel in 2013.
Gordon Bleugh
The shorts are claymation/stopmotion in nature, and are animated by Neville Buchanan. Several accounts describe this short as the misadventures of a claymation, anthropomorphic green frog in a chef's costume, often facing mishaps like malfunctioning equipment or a fly buzzing around the kitchen. Four shorts were produced by A for Animation and Elm Road Productions in 2000.
CatDog
These are the two pilot films of CatDog that aired before the show existed.
Deko Boko Friends
Those Scurvy Rascals
Mr. Meaty
The shorts from which the show originated.
Inside-Out Boy
Five shorts produced from 1989 to 1993, they are about the boy who accidentally swung over the bar of the swing set and his body flips inside-out. It was animated in claymation. It was only aired on Nickelodeon. It later made a return on a bumper for TeenNick's The '90s Are All That. Two shorts each can be seen on the Rugrats VHS tape A Baby's Gotta Do What a Baby's Gotta Do and "Tales from the Crib".
Planet Sketch
Shorts from the British/Canadian CGI sketch show, Planet Sketch.
A Town Called Panic
Primo
A series of German/British shorts about a penguin called Primo who goes on crazy adventures.
Avatar: The Last Airbender
Shorts featuring the cast of Avatar: The Last Airbender super deformed. There have been three.
The Non-Adventures of Safety Queen
Shorts featuring a girl with the alias of Safety Queen who helps kids overcome their fears by advising them against it, giving ridiculous scenarios of what would happen if they went for it, but the kids ignore this and do it anyway and realize there was nothing to fear after all. Three shorts were produced for Nickelodeon in 1995; these shorts can be seen on the Rugrats VHS tape Phil and Lil: Double Trouble.
Domo
Others
Other shorts are computer-generated scenes, such as Fowl Play, whose name is a pun on the phrase foul play. In Fowl Play, penguins and ducks play an exciting soccer game with music in the background. In the end, the music shifts, and a team of three ostriches catch the ball, ready to challenge the teams. It was made by Christopher DeSantis and won the Nicktoons Creator Award.
A series of shorts aired back in December 2007 or 2008. They were about the adventures of Santa Claus as he prepared for Christmas and a new one aired every day until Christmas Eve.