Ilex Forest
Pokemon HeartGold
| Pokemon | Levels | Method | Rarity |
|---|---|---|---|
 Budew | 5-6 | Walking in tall grass or a cave | 20% |
 Carnivine | 6 | Walking in tall grass or a cave | 20% |
 Caterpie | 5-6 | Walking in tall grass or a cave | 110% |
 Golduck | 10-20 | Surfing | 10% |
 Magikarp | 10 | Fishing with an Old Rod | 85% |
| Magikarp | 20 | Fishing with a Good Rod | 40% |
| Magikarp | 40 | Fishing with a Super Rod | 20% |
 Metapod | 5-6 | Walking in tall grass or a cave | 60% |
 Numel | 6 | Walking in tall grass or a cave | 20% |
 Oddish | 5-6 | Walking in tall grass or a cave | 60% |
 Paras | 5-6 | Walking in tall grass or a cave | 25% |
 Poliwag | 40 | Fishing with a Super Rod | 80% |
| Poliwag | 10 | Fishing with an Old Rod | 15% |
| Poliwag | 20 | Fishing with a Good Rod | 60% |
 Psyduck | 5-20 | Surfing | 90% |
 Spoink | 5-6 | Walking in tall grass or a cave | 20% |
 Zubat | 5-6 | Walking in tall grass or a cave | 25% |
Pokemon SoulSilver
| Pokemon | Levels | Method | Rarity |
|---|---|---|---|
| Budew | 5-6 | Walking in tall grass or a cave | 20% |
| Carnivine | 6 | Walking in tall grass or a cave | 20% |
| Golduck | 10-20 | Surfing | 10% |
 Kakuna | 5-6 | Walking in tall grass or a cave | 60% |
| Magikarp | 10 | Fishing with an Old Rod | 85% |
| Magikarp | 20 | Fishing with a Good Rod | 40% |
| Magikarp | 40 | Fishing with a Super Rod | 20% |
| Numel | 6 | Walking in tall grass or a cave | 20% |
| Oddish | 5-6 | Walking in tall grass or a cave | 60% |
| Paras | 5-6 | Walking in tall grass or a cave | 25% |
| Poliwag | 40 | Fishing with a Super Rod | 80% |
| Poliwag | 10 | Fishing with an Old Rod | 15% |
| Poliwag | 20 | Fishing with a Good Rod | 60% |
| Psyduck | 5-20 | Surfing | 90% |
| Spoink | 5-6 | Walking in tall grass or a cave | 20% |
 Weedle | 5-6 | Walking in tall grass or a cave | 110% |
| Zubat | 5-6 | Walking in tall grass or a cave | 25% |