Cave
Cerulean Cave
The post-game dungeon, opened only after you become Champion and reached by Surfing north-west out of Cerulean City. The highest-level wild Pokemon in the game live here, and Mewtwo waits at level 70 at the deepest point.
Encounters
| Entity | Types | Method | Levels | Rate | Time |
|---|---|---|---|---|---|
| Sandslash | Ground | Cave | 52–56 | 10% | any |
| Golbat | Flying Poison | Cave | 50–59 | 40% | any |
| Gloom | Grass Poison | Cave | 55–58 | 10% | any |
| Parasect | Bug Grass | Cave | 54–54 | 5% | any |
| Venomoth | Bug Poison | Cave | 54–54 | 5% | any |
| Poliwag | Water | Good Rod | 10–10 | 50% | any |
| Weepinbell | Grass Poison | Cave | 55–58 | 10% | any |
| Graveler | Ground Rock | Cave | 45–55 | 15% | any |
| Lickitung | Normal | Cave | 50–55 | 5% | any |
| Rhyhorn | Ground Rock | Cave | 50–52 | 10% | any |
| Rhydon | Ground Rock | Cave | 58–62 | 10% | any |
| Chansey | Normal | Cave | 56–56 | 5% | any |
| Goldeen | Water | Good Rod | 10–10 | 50% | any |
| Goldeen | Water | Super Rod | 25–30 | 40% | any |
| Seaking | Water | Super Rod | 35–60 | 60% | any |
| Magikarp | Water | Old Rod | 5–5 | 100% | any |
| Ditto | Normal | Cave | 55–65 | 15% | any |
| Mewtwo | Psychic | One-time battle | 70–70 | 5% | any |