Big Mushroom

Every wild place a Pokémon that may hold Big Mushroom turns up, best odds first. The odds are how often each of them appears there times how often it holds the item, added up for every one you can meet at the same time. Hold chances are from the game's files as of August 2026.

2. 2
   Route 13

   Chapter 17

   1 in 99encounters

   • Foongus
     Cave floorLv. 32-36

     20% meet 5% hold it 20% with the lead
3. 3
   Chamber of the Jewel

   Chapter 18

   1 in 99encounters

   • Foongus
     Wild

     20% meet 5% hold it 20% with the lead
4. 4
   Final Journey

   Chapter 29

   1 in 172encounters

   • Amoonguss
     Cave floorLv. 39-50

     12% meet 5% hold it 20% with the lead
5. 5
   Victory Road

   Chapter 30

   1 in 172encounters

   • Amoonguss
     Cave floorLv. 39-50

     12% meet 5% hold it 20% with the lead
6. 6
   Safari Zone

   Chapter 25

   1 in 194encounters Flowers

   Tall grass1 in 214

   • Morelull
     FlowersLv. 29-37

     10% meet 5% hold it 20% with the lead
   • Morelull
     Tall grassLv. 29-37

     9.3% meet 5% hold it 20% with the lead

• Lead with Compound Eyes or Super LuckThe first Pokémon in your party, even a fainted one, turns a 5% item into 20% and a 50% one into 60%. At the best place above that takes Big Mushroom from 1 in 60 to 1 in 15 encounters.
  Butterfree
  Venonat
  Yanma
  Joltik
  Nincada
  Scatterbug
• Catch it, do not steal itIn this game Thief and Covet only keep the item until the battle ends; your Pokémon does not leave with it. A caught Pokémon keeps its item, so throw a ball and take the item from it in your party.
• Check first with FriskA Frisk Pokémon names the foe's item when it comes in, so you only spend balls on the ones holding it. Put the Compound Eyes Pokémon first, fainted, and send Frisk in to battle.