When it encounters another Ditto, it will move faster than normal to duplicate that opponent exactly.
Note, you can always call Professor Elm with the Pokemon you are trying to evolve as first in your party. This was a feature that was added specifically to Polished Crystal. If the information on this page seems incorrect, please try calling Professor Elm.
This Pokémon does not evolve.
| Route 34 | any | Field | Lv. 10 | 5% |
| Route 35 | any | Field | Lv. 10 | 3% |
| Route 35 | any | Field(Swarm) | Lv. 10 | 5% |
| Route 47 | any | Field | Badge +1 | 30% |
| Cerulean Cave 1F | any | Field | Lv. 70 | 2% |
| Cerulean Cave 2F | any | Field | Lv. 72 | 2% |
| Cerulean Cave B1F | any | Field | Lv. 74 | 2% |
| Route 35 | any | hidden grotto | Lv. 15 | 5% |
| Pokémon Mansion B1F | any | Field | Lv. 60 | 5% |
| Route 23 | any | Field | Lv. 42 | 2% |
| Level | Move | Type | Cat. | Power | Acc. | PP |
|---|---|---|---|---|---|---|
| TransformLevel: 1 | ||||||
| normal |  | 0 | 100 | 10 | ||
| The user assumes the foe's guise. | ||||||