26highest level
Levels shown are Normal mode: -2 on Easy, +2 on Challenge.
Fought at Route 8.
This is around Thunder Badge — Rock Tunnel to Celadon City in the story — that page lists everything you can have caught by this point.
Types on this team: Poison
| Pokémon | Moves | |
|---|---|---|
 | Koffing Lv 26 · Levitate | Sludge Smokescreen Smog Selfdestruct |