Tiny Mushroom is held by 8 wild species across 22 games

Effect, in PokéAPI's words

Tiny Mushroom: “Fire Red and Leaf Green: Trade two for prior Level-up moves. Sell for 250 Pokédollars, or to Hungry Maid for 500 Pokédollars.”

Vendor trash.

Held wild

8 species carry Tiny Mushroom in the wild

Species	Games	Chance
Paras	Ruby, Sapphire, Emerald, FireRed, LeafGreen, Diamond, Pearl, Platinum, HeartGold, SoulSilver, Black, White, Black 2, White 2, X, Y, Omega Ruby, Alpha Sapphire, Sun, Moon, Ultra Sun and Ultra Moon	50%
Parasect	Ruby, Sapphire, Emerald, FireRed, LeafGreen, Diamond, Pearl, Platinum, HeartGold, SoulSilver, Black, White, Black 2, White 2, X, Y, Omega Ruby, Alpha Sapphire, Sun, Moon, Ultra Sun and Ultra Moon	50%
Shroomish	Omega Ruby, Alpha Sapphire, Sun, Moon, Ultra Sun and Ultra Moon	50%
Breloom	Omega Ruby, Alpha Sapphire, Sun, Moon, Ultra Sun and Ultra Moon	50%
Foongus	Black, White, Black 2, White 2, X, Y, Omega Ruby, Alpha Sapphire, Sun, Moon, Ultra Sun and Ultra Moon	50%
Amoonguss	Black, White, Black 2, White 2, X, Y, Omega Ruby, Alpha Sapphire, Sun, Moon, Ultra Sun and Ultra Moon	50%
Morelull	Sun, Moon, Ultra Sun and Ultra Moon	50%
Shiinotic	Sun, Moon, Ultra Sun and Ultra Moon	50%

Games

Tiny Mushroom is listed in the text of 13 version groups, first in Generation II

Game index by generation

Named in