Route 18
Pokemon Red and Blue
| Pokemon | Levels | Method | Rarity |
|---|---|---|---|
 Doduo | 24-28 | Walking in tall grass or a cave | 25% |
 Fearow | 25-29 | Walking in tall grass or a cave | 15% |
 Goldeen | 10 | Fishing with a Good Rod | 50% |
| Goldeen | 15 | Fishing with a Super Rod | 25% |
 Krabby | 15 | Fishing with a Super Rod | 25% |
 Magikarp | 5 | Fishing with an Old Rod | 100% |
| Magikarp | 15 | Fishing with a Super Rod | 25% |
 Poliwag | 10 | Fishing with a Good Rod | 50% |
 Raticate | 25-29 | Walking in tall grass or a cave | 20% |
 Spearow | 20-22 | Walking in tall grass or a cave | 40% |
 Tentacool | 5 | Fishing with a Super Rod | 25% |
Pokemon Yellow
| Pokemon | Levels | Method | Rarity |
|---|---|---|---|
| Doduo | 22-26 | Walking in tall grass or a cave | 40% |
| Fearow | 24 | Walking in tall grass or a cave | 5% |
| Goldeen | 10 | Fishing with a Good Rod | 50% |
| Magikarp | 5 | Fishing with an Old Rod | 100% |
| Poliwag | 10 | Fishing with a Good Rod | 50% |
| Raticate | 25-26 | Walking in tall grass or a cave | 5% |
 Rattata | 23-24 | Walking in tall grass or a cave | 25% |
 Shellder | 20-40 | Fishing with a Super Rod | 60% |
| Spearow | 22-23 | Walking in tall grass or a cave | 25% |
| Tentacool | 15 | Fishing with a Super Rod | 40% |
Pokemon FireRed and LeafGreen
| Pokemon | Levels | Method | Rarity |
|---|---|---|---|
| Doduo | 24-28 | Walking in tall grass or a cave | 35% |
| Fearow | 25-29 | Walking in tall grass or a cave | 15% |
| Raticate | 25-29 | Walking in tall grass or a cave | 15% |
| Rattata | 22 | Walking in tall grass or a cave | 5% |
| Spearow | 20-22 | Walking in tall grass or a cave | 30% |
Pokemon HeartGold and SoulSilver
| Pokemon | Levels | Method | Rarity |
|---|---|---|---|
| Fearow | 27-29 | Walking in tall grass or a cave | 80% |
 Grimer | 26-28 | Walking in tall grass or a cave | 80% |
 Minun | 28 | Walking in tall grass or a cave | 20% |
 Muk | 29-30 | Walking in tall grass or a cave | 15% |
 Plusle | 26-27 | Walking in tall grass or a cave | 20% |
 Shinx | 26-28 | Walking in tall grass or a cave | 40% |
 Slugma | 27 | Walking in tall grass or a cave | 5% |