Altering Cave
Pokemon FireRed and LeafGreen
| Pokemon | Levels | Method | Rarity |
|---|---|---|---|
 Aipom | 18-28 | Walking in tall grass or a cave | 100% |
 Houndour | 12-22 | Walking in tall grass or a cave | 100% |
 Mareep | 3-13 | Walking in tall grass or a cave | 100% |
 Pineco | 19-29 | Walking in tall grass or a cave | 100% |
 Shuckle | 18-28 | Walking in tall grass or a cave | 100% |
 Smeargle | 18-28 | Walking in tall grass or a cave | 100% |
 Stantler | 18-28 | Walking in tall grass or a cave | 100% |
 Teddiursa | 18-28 | Walking in tall grass or a cave | 100% |
 Zubat | 6-16 | Walking in tall grass or a cave | 100% |