When it was introduced in Generation III, Shroomish had only one Ability, called Effect Spore, an ability that has a 10% of afflicting an opponent with either Paralysis, Poison, or Sleep when it is hit by a move that requires physical contact against it. A second ability was added to Shroomish in Generation IV, the Poison Heal Ability. This ability restores its HP every turn that is Poisoned.
A third ability was added to Shroomish from the Dream World in Generation V, the Quick Feet Ability. This ability increases its Speed by 50% when it is induced with a Burn, Sleep, Poison, or Freeze, but the ability does not activate if it gets paralyzed.
Shroomish gain the opportunity to evolve into Breloom starting at Level 23.
Shroomish takes on the appearance of a spotted mushroom with a green lower body.
Shroomish doesn't have any distinguishable characteristics to differentiate between male and female.
Shroomish appears at the Great Marsh as a Daily Binocular Pokémon in the area in which it shows up on the binoculars in Diamond, Pearl and Platinum. This doesn't occur until after the National Pokédex has been obtained.
Shroomish appears at SOL Laboratory 2, Secret Storage 17, Huge Storage 2 and Mr. Who's Den in Pokémon Trozei!.
Shroomish appears at Sinister Woods 6F-12F and Joyous Tower 21F-25F in the first Mystery Dungeon game. In Explorers of Time, Explorers of Darkness and Explorers of Sky, Shroomish appears at the first six floors of Mt Horn, Rock Path B1-B5 and Final Maze at random from B1 all the way to B48.
Shroomish does not appear in any of the Pokémon Ranger games.
Shroomish can be obtained at the Meadow Zone in PokéPark Wii: Pikachu's Adventure by freeing it from the crate that it is trapped in by smashing it, then completing a Tag Race. In PokéPark 2: Wonders Beyond, Shroomish can be found at the Verdant Courts section of the Arbor Area after retrieving it from Wish Park.
Shroomish can be found at Echo Valley Forest 1-3 and Misty Edgewater Forest 2-2 in Pokémon Rumble Blast.
Trading Card Game
Shroomish appears in six sets. It is listed as a Common Card in the EX Ruby and Sapphire, EX Sandstorm, EX Deoxys, EX Emerald, Secret Wonders and Supreme Victors Sets.
Shroomish were heavily featured in the episode Taming of the Shroomish!, in which an entire mansion was full of Shroomish, one of which belonged to a local trainer. Most recently, Wild Shroomish appeared in the episode Coming Full Festival Circle in a cameo capacity.
Shroomish's Manga info is unknown at this time.
Shroomish is listed in the NFE, or Not Fully Evolved Tier of Competitive Battling as it is an unevolved Pokémon.
Via Move Tutor (Black 2/White 2)
Generation III Exclusive Moves
Via Move Tutor (Fire Red/Leaf Green)
Generation IV Exclusive TM/HM Moves
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