| Location | Method |
|---|---|
| Cerulean Cave 1F | item |
| Cinnabar Volcano B1F | item |
| Dark Cave Blackthorn Entrance | item |
| Rock Tunnel B1F | item |
| Route 12 | item |
| Route 2 Nugget House | gift fromFisherman |
| Route 34 | item |
| Route 45 | item |
| Route 48 | item |
| Team Rocket Base B1F | item |
| Tin Tower 8F | item |
| Whirl Island B1F | item |
| Pokémon | Rarity | |
|---|---|---|
 | Grimer | Rare (5%) |
 | Alolan Grimer | Rare (5%) |
 | Muk | Rare (5%) |
 | Alolan Muk | Rare (5%) |