Breloom is a bipedal, mushroom-like Pokémon with some kangaroo-like qualities. Most of its body is green, but its head to its neck and its tail are beige. On top of its head is a green, mushroom-like cap with beige gills underneath and a round, red berry-like growth with a hole in the middle on either side. It has oval, black eyes, a beak-like mouth, and frilled segments around the base of its neck. There are two red claws on each of its hands and feet. At the end of its tail, there are seed clusters made of hardened toxic spores that are horrible to eat.
Breloom can stretch its short arms to deliver fast punches. Additionally, it has light, springy footwork that allows it to get close to opponents. Another way it closes in on opponents is by incapacitating them with spores released from the holes in its cap. Its technique is equal to that of professional boxers. It prefers to live in warm and humid forests, where it feeds on trees and plants.
In the main series
Major appearances
Breloom appeared in A Shroomish Skirmish, where they attacked Ash and his friends after evolving from Shroomish and were furious at Team Rocket for stealing their food. May's newly evolved Combusken took on the leader Breloom in a vicious hand-to-hand fight and suddenly declared a truce between them, saving the day.
Kenny has a Breloom that debuted in Journey to the Unown!, where it was used in a battle against Ash's Turtwig. In Team Shocker!, its performance in the Appeals Round of the Solaceon Town Pokémon Contest advanced Kenny to the Contest Battles.
A wild male Breloom appeared in A Windswept Encounter!. He was in love with an Orange Flower Floette and had three Beedrill followers. He fought against Noibat over the Floette, who didn't reciprocate his feelings, but later worked together with Noibat to defeat Team Rocket.
Minor appearances
Multiple Breloom debuted in a cameo in Jirachi: Wish Maker as some of the residents of Forina, Jirachi's home.
A Breloom appeared in a flashback in Poetry Commotion!.
A Breloom appeared in the opening sequence of Where's Armaldo?.
A Coordinator's Breloom appeared in Deceit and Assist.
A Breloom battled Ash's Pikachu during the tournament held in Rota in Lucario and the Mystery of Mew.
A Breloom made a cameo in Numero Uno Articuno, under the ownership of Noland. It was among the Pokémon residing at the Battle Factory.
A Breloom appeared in Pasta La Vista!, under the ownership of the Fighting Dojo.
A Breloom appeared in Weekend Warrior.
A Trainer's Breloom appeared in Spontaneous Combusken!.
A Coordinator's Breloom briefly appeared in May, We Harley Drew'd Ya!.
Multiple Breloom made a cameo in the opening sequence of Giratina and the Sky Warrior.
Multiple Breloom appeared in Zoroark: Master of Illusions as some of the many local Pokémon living in Crown City. Two of them worked with the other Pokémon in surrounding Zorua with the intention of attacking him, angry for what Zoroark did to the city. Before a fight broke out, the Breloom, along with the other Pokémon, were calmed down by Celebi.
A Breloom appeared in Mewtwo — Prologue to Awakening.
A group of Breloom appeared in Genesect and the Legend Awakened, where they battled the Genesect Army at Pokémon Hills.
A Breloom appeared in a video that Sawyer was watching in Kalos League Passion with a Certain Flare! during a fight with a Scrafty.
Pokédex entries
Episode
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Pokémon
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Source
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Entry
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AG082
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Breloom
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May's Pokédex
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Breloom, the Mushroom Pokémon. Breloom is the evolved form of Shroomish. Its excellent footwork gets it within striking distance of its opponent, where it unleashes a barrage of punches.
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Episode
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Pokémon
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Source
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Entry
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DP060
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Breloom
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Dawn's Pokédex
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Breloom, the Mushroom Pokémon. Its short arms stretch when it throws punches, and its technique is as good as a professional boxer.
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Episode
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Pokémon
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Source
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Entry
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XY104
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Breloom
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Serena's Pokédex
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Breloom, the Mushroom Pokémon. Breloom releases poisonous spores to weaken its opponents, then attacks with powerful punches.
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In Pokémon Generations
A wild Breloom appeared in The Cavern, where it was running away from a storm that a Primal Kyogre was creating.
Origin
Breloom is based on a mushroom, specifically the genus Agaricus. Its body structure resembles that of a kangaroo. The shapes of its head and tail resemble that of the armored dinosaurs, Pachycephalosaurus and Ankylosaurus, respectively.
Name origin
Breloom may be a combination of umbrella and mushroom. In Latin, bellum means war, perhaps a nod to its Fighting type.
Kinogassa may be a combination of 茸 kinoko (mushroom) and 傘 kasa (umbrella).