List of Teenage Mutant Ninja Turtles (1987 TV Series) Episodes - Season 3 (1989)

Irma accidentally becomes gigantic and her naturally clumsy nature makes her a danger to the city. The Turtles and April hide her and search for her cure.

Gangsters are swiping all the antiques in town. And when they swipe most of our heroes, it's up to Donatello and April to find out why. Could Shredder be behind this?

Note: Krang is not in this episode.

In the middle of a summer heat wave, someone is destroying all the air conditioners and taking all the city's freon. In the meantime, Vernon and Burne go looking for the Turtles, but find something else.

A 14-year-old boy tries his best to help out the Turtles, but with some not so optimal results. In the end, he proves himself to be a great asset to the Turtle team.

A mysterious, sewer-dwelling man has an unnatural ability to put rats under his control. Can Splinter resist, or will he destroy the Turtles at the bidding of the Rat King?.

Note: This is the very first episode not to feature Shredder.

Note: First Appearance of the Rat King.

After witnessing a living dinosaur wander in the city and disappear abruptly, the Turtles follow its tracks into a large hole, where they discover a shocking revelation: A land frozen in a stage where dinosaurs roam the land. Meanwhile, Shredder and his mutant goons, Bebop and Rocksteady, are also there, but to collect a crystal needed by Krang to recharge the power cells of the Technodrome. The Turtles discover that the crystal is the life force for the entire dinosaur population and must get it back before they are all destroyed.

A robot warrior, known as the Mobile Armored Computerized Combatant (M.A.C.C.), arrives from 400 years in the future in 20th-Century New York. He befriends the Turtles, but Shredder and Krang are looking to bring him to their side, at any means necessary.

Shredder gains possession of an ancient ninja sword that is crafted from an alien metal, allowing it to 'cut' through dimensions.

Krang and Shredder's plan to flush out the Turtles from the sewers leaves the city flooded with water (and creatures!) from the ocean.

Title Reference: 20,000 Leagues Under the Sea

Note: Final Appearance of Tiffany.

A bump on the head leaves Leonardo thinking that he is in 17th century France, and that he and his comrades are Musketeers.

Title Reference: The Three Musketeers

The Shredder thinks he's Michelangelo after a computer malfunction.

Aliens abduct Donatello and Rocksteady.

A visit to Earth from a Polarisoid results in havoc when Shredder (and later, April O'Neil) comes into possession of the alien's camera, because it does more than just take pictures.

Shredder and Krang engineer a love potion that makes Leonardo, Michelangelo, and Raphael all fall in love with Irma. Donatello races for an antidote before Shredder drains a naval submarine of all its power.

Baxter Stockman returns for revenge against the Turtles and Shredder, while our heroes attempt to stop Shredder's plan to siphon water from an underground reservoir.

An eager vigilante is causing a stir in the city, while Krang and Shredder take control of all the machines in the city. Maybe this new 'hero' can help the Turtles.

Note: First Appearance of Casey Jones.

A train accident produces gallons of mutagen that drench nearby cattle. The result is a super bull with a temper!

White-collar criminals give new meaning to the term 'hostile take-over.' Casey Jones helps the Turtles uncover who's behind a new wave of corporate crime.

A skilled, and lovely, ninja warrior is hired by Krang to defeat the Turtles. Shredder's replaced, Leonardo's met his match.

Splinter suffers amnesia as the Turtles try to remind him that he is the true leader of the Foot Clan.

Note: This episode is mainly a clip-show.

Our old friends, the Frogs, are being terrorized by a mutant alligator in the Florida Everglades. Leatherhead teams up with Shredder to battle the Frogs and the Turtles.

Note: First Appearance of Leatherhead.

Note: In this episode, both Donatello and Bebop are voiced by Greg Berg instead of Barry Gordon.

A rabbit ronin warrior from an alternate dimension is lost in our world. While the Turtles help him adjust, Shredder steals a dragon egg to unleash it on the city. Usagi Yojimbo's unwavering sense of bushido helps save the day.

Note: First Appearance of Usagi Yojimbo.

Someone is stealing all the kimonos in the city. After Master Splinter's favorite kimono is stolen, April's famous detective aunt helps the Turtles retrieve it.

Note: First Appearance of Agatha Marbles.

Shredder tricks Usagi Yojimbo into battling the Turtles.

Even a case of Turtle Pox cannot stop our heroes from an attempt to take down Shredder and Krang after they unleash Metalhead, a robotic fighting machine programmed to seek and capture the Turtles.

Note: In this episode, Shredder is voiced by Dorian Harewood instead of James Avery.

Irma is kidnapped by Bebop and Rocksteady and is replaced by a robot that looks just like her that is programmed to eliminate the turtles. However, things seem a bit wrong as whenever the word "turtle" is said it instantly "zaps" whatever causes the word to be said with a laser. Meanwhile, the turtles try to rescue Irma from the Shredder's clutches.

Note: Final episode where Raphael is voiced by Thom Pinto instead of Rob Paulsen.

The Turtles must clear their names when they are believed to be jewel thieves who stole a priceless emerald during a magic act run by a wizard named Boldini.

Note: Final Appearance of Don Turtelli.

Bebop and Rocksteady put on an act to get the Turtles to eat cookies, but not any ordinary cookies, because these cookies could turn them into humans! Tempted to find out what being a human is like, Michelangelo eats one and becomes one. While the effects wears off from time to time, they still kick back in. Meanwhile, the Turtles search for Michelangelo with an antidote for the anti-mutagen before it destroys him, while Shredder's two mutant goons ask for help from their old gang to rob a ship. And during it all, April attempts to "join" the gang to get a story for Burne.

An impish alien comedian from Dimension Z (who has mannerisms similar to Pee Wee Herman), escapes to Earth to cause big trouble for the TMNT.

The Turtles have entered an alternate universe in which they thought had never existed and The Shredder rules the city as Emperor.

An interdimensional alien spacecraft leads Baxter Stockman to his latest vengeful plot to destroy the Turtles and Shredder.