Mankey is a primate Pokémon, similar to a New World monkey. It is a bipedal Pokémon with a round body covered in whitish, shaggy fur. Its nose is similar to a pig’s snout, and it has red eyes and triangular ears with brown insides. Mankey's hands, two-toed feet, and the tip of its curved, prehensile tail are brown. Along with Stufful, it is the smallest Fighting-type Pokémon.
Mankey specializes in physical fighting, and is very aggressive and short-tempered. When angry, Mankey begins shaking and its breathing turns rough. Its rage peaks quickly, preventing its victim from being able to flee. If Mankey loses sight of its colony, its loneliness causes it to become infuriated. Mankey can be found in the mountains. Mankey lives in treetop colonies, and if one becomes enraged, the whole colony rampages for no reason.
According to the Pokémon Mystery Dungeon: Red Rescue Team and Blue Rescue Team games, Mankey's preferred food is chestnuts, although Mankey usually lacks the dexterity to peel them. Mankey will get agitated and rage after attempting to peel a chestnut's spiky shell. Additionally, it also appears to be fond of bananas in the anime.
In the main series
In Primeape Goes Bananas, a wild Mankey stole Ash's hat and then evolved into a Primeape. Ash caught it shortly afterward.
In A Tyrogue Full of Trouble, a Primeape was causing problems for a small town along with a Mankey and a Tyrogue. A Trainer named Kiyo was able to capture the Tyrogue, and the Mankey and Primeape joined up with him.
In Training Daze, a Mankey jointly owned by Jessie and Jubei was used at the Team Rocket Academy for a test. It lowered Jessie into a vault containing an Articuno statue, but due to the rope getting stuck, Mankey and Jubei had to pull Jessie and the statue up; proving to be too heavy, they dropped it, triggering the alarms and resulting in Mankey and Jubei being injured.
Multiple Mankey debuted in Pokémon - I Choose You!, where they witnessed a flock of Spearow chasing after Ash and Pikachu.
A Mankey appeared in The Kangaskhan Kid.
Mankey was one of the Yas Gym's Pokémon in Showdown at Dark City.
A Mankey appeared in The Breeding Center Secret.
Multiple Mankey were among the Pokémon seen at Professor Oak's Laboratory in Showdown at the Po-ké Corral.
A Mankey appeared in Pikachu's Vacation as one of the Pokémon seen at the Pokémon Theme Park.
A Mankey appeared in Friends to the End, under the ownership of a Trainer seen during the closing ceremonies of the Indigo League.
A Mankey appeared in Pallet Party Panic as one of the Pokémon at a party in Pallet Town.
A Mankey appeared in Pikachu Re-Volts, where it was among the Pokémon controlled by Cassidy and Butch at Mandarin Island North.
Multiple pink Mankey appeared in In the Pink as residents of Pinkan Island.
A Trainer's Mankey appeared in The Joy of Pokémon, where it was treated by the Nurse Joy of an unnamed island.
Two wild Mankey appeared in Pikachu's Rescue Adventure. One of them helped the Trainers' Pokémon and Elekid save the Exeggcute nests and Togepi during a storm.
Multiple Mankey appeared in Flower Power as parts of Florando's annual Pokémon Exhibition.
In Spell of the Unown: Entei, a Trainer named Lisa used a Mankey to battle Ash. It battled against Cyndaquil only to be defeated.
A Trainer's Mankey appeared in Two Hits and a Miss, where it was one of the many Pokémon at a Fighting-type dojo.
A Mankey appeared in A Hot Water Battle as a resident of a tropical jungle.
A Mankey appeared in The Trouble With Snubbull.
Multiple Mankey appeared in Celebi: The Voice of the Forest.
A Mankey appeared in Got Miltank? as an inhabitant of a Pokémon-exclusive oasis.
A Mankey appeared in Machoke, Machoke Man! as one of the Pokémon seen at the Cianwood Gym.
A Mankey was one of the Pokémon seen in a forest outside the Ice Path in the banned episode EP250.
A wild Mankey appeared in The Legend of Thunder!.
A Mankey appeared in Great Bowls of Fire! as an inhabitant of the Dragon Holy Land.
A Mankey appeared in the opening sequence of Lucario and the Mystery of Mew.
A Mankey appeared in PK14.
A Coordinator's Mankey appeared in Deceit and Assist.
A Coordinator's Mankey appeared in The Saffron Con and A Hurdle for Squirtle, where it participated in the Saffron City Pokémon Contest.
Multiple Mankey appeared in Slaking Kong!.
A Mankey appeared in Gettin' Twiggy With It!.
A Mankey appeared in Pokémon Ranger and the Kidnapped Riolu! Part 1 and Part 2.
A Mankey appeared in A Rivalry to Gible On!.
A Mankey appeared in A Marathon Rivalry!, under the ownership of a competitor in the Pokéathlon held in Camellia Town.
A Trainer's Mankey appeared in Alola to New Adventure!.
Two Trainers' Mankey appeared in A Shocking Grocery Run!.
A Mankey appeared in The Sun, the Scare, the Secret Lair!, where Lillie observed it attacking a Primeape.
Two Mankey appeared in Rocking Clawmark Hill!, as some of the Pokémon training up on Clawmark Hill.
A Trainer's Mankey appeared in Crystal-Clear Sleuthing!, during a flashback on a clip that Rotom played.
A Trainer's Mankey appeared in Balloons, Brionne, and Belligerence!.
A Trainer's Mankey appeared in Getting a Jump on the Competition!.
A Trainer's Mankey appeared in Smashing with Sketch!, where it participated in the Pokémon Ping-Pong tournament.
A Trainer's Mankey appeared in Love at First Twirl!.
Two Trainers' Mankey appeared in A Young Royal Flame Ignites!.
Two Mankey appeared in Securing the Future!, with one under the ownership of a Trainer and the other being wild. They joined the rest of Alola in showering Necrozma with light so it could return to its true form.
A Trainer's Mankey appeared in SM099.
|| Ash's Pokédex
|| Mankey, a Pig Monkey Pokémon of the Fighting-type. Known for its superior footwork, it packs a powerful punch.
|| Mankey's temper
|| Ash's Pokédex
|| Although Mankey is usually calm, it does have a bad temper. Once Mankey begins to Thrash, stopping it is impossible.
| This concludes the entries from the original series.
In Pokémon Origins
A Mankey appeared in a flashback in File 2: Cubone.