West of Viridian, on the way to Victory Road. Reachable before Brock - catch a Mankey or a Nidoran here, because Pikachu cannot hurt Pewter Gym. The optional early rival battle here decides which Eeveelution the Champion will use.
Home To
Where something is met, and how. Characters are here as well as creatures: the guide records where Professor Oak stands and where each Gym Leader is fought.
| Home To | Encounter Method | Encounter Level | Encounter Rate |
|---|---|---|---|
| Rattata | Grass | 3–3 | 10 % |
| Spearow | Grass | 2–6 | 10 % |
| Nidoran (F) | Grass | 2–4 | 30 % |
| Nidoran (M) | Grass | 2–4 | 30 % |
| Mankey | Grass | 3–5 | 20 % |
| Poliwag | Good Rod | 10–10 | 50 % |
| Poliwag | Super Rod | 5–15 | 90 % |
| Poliwhirl | Super Rod | 15–15 | 10 % |
| Goldeen | Good Rod | 10–10 | 50 % |
| Magikarp | Old Rod | 5–5 | 100 % |