1F
| Pokémon | Lv. | Red | Blue |
|---|
| 46 | 20% | 20% |
| 46 | 20% | 20% |
| 46 | 15% | 15% |
| 52 | 10% | – |
| 52 | – | 10% |
| 49 | 10% | 10% |
| 49 | 10% | 10% |
| 52 | 5% | 5% |
| 49 | 5% | 5% |
| 53 | 4% | 4% |
| 53 | 1% | 1% |
| Pokémon | Lv. | Red | Blue |
|---|
| 5 | 100% | 100% |
| Pokémon | Lv. | Red | Blue |
|---|
| 10 | 50% | 50% |
| 10 | 50% | 50% |
| Pokémon | Lv. | Red | Blue |
|---|
| 23 | 25% | 25% |
| 23 | 25% | 25% |
| 23 | 25% | 25% |
| 23 | 25% | 25% |
B1F
| Pokémon | Lv. | Red | Blue |
|---|
| 55 | 20% | 20% |
| 55 | 20% | 20% |
| 55 | 15% | 15% |
| 64 | 10% | 10% |
| 64 | 10% | 10% |
| 64 | 10% | 10% |
| 63–67 | 10% | 10% |
| 57 | 5% | – |
| 57 | – | 5% |
| Pokémon | Lv. | Red | Blue |
|---|
| 5 | 100% | 100% |
| Pokémon | Lv. | Red | Blue |
|---|
| 10 | 50% | 50% |
| 10 | 50% | 50% |
| Pokémon | Lv. | Red | Blue |
|---|
| 23 | 25% | 25% |
| 23 | 25% | 25% |
| 23 | 25% | 25% |
| 23 | 25% | 25% |
| Pokémon | Lv. |
|---|
 MewtwoPsychic Static: Cerulean Cave B1F, the deepest floor | 70 |
2F
| Pokémon | Lv. | Red | Blue |
|---|
| 51 | 20% | 20% |
| 51 | 20% | 20% |
| 51 | 15% | 15% |
| 52 | 10% | 10% |
| 52 | 10% | 10% |
| 52 | 10% | 10% |
| 54 | 5% | 5% |
| 56 | 5% | 5% |
| 55–60 | 5% | 5% |
| Pokémon | Lv. | Red | Blue |
|---|
| 5 | 100% | 100% |
| Pokémon | Lv. | Red | Blue |
|---|
| 10 | 50% | 50% |
| 10 | 50% | 50% |
| Pokémon | Lv. | Red | Blue |
|---|
| 23 | 25% | 25% |
| 23 | 25% | 25% |
| 23 | 25% | 25% |
| 23 | 25% | 25% |
