Route 20 – West
| Pokemon | Type | Yellow |
|---|---|---|
| Tentacool | Water/Poison | X |
| Pokemon | Type | Yellow |
|---|---|---|
| Tentacool | Water/Poison | X |
| Tentacruel | Water/Poison | X |
| Staryu | Water | X |
A series of Pokemon Trainers will be along the rest of Route 20 until you reach Cinnabar Island in the west.
| Pokemon | Level | Type | Moves |
|---|---|---|---|
| Tentacool | 30 | Water/Poison | Wrap, Poison Sting, Water Gun, Constrict |
| Horsea | 30 | Water | Bubble, Smokescreen, Leer, Water Gun |
| Seel | 30 | Water | Headbutt, Growl |
| Pokemon | Level | Type | Moves |
|---|---|---|---|
| Staryu | 35 | Water | Water Gun, Harden, Recover, Swift |
| Pokemon | Level | Type | Moves |
|---|---|---|---|
| Fearow | 30 | Normal/Flying | Growl, Leer, Fury Attack, Mirror Move |
| Fearow | 30 | Normal/Flying | Growl, Leer, Fury Attack, Mirror Move |
| Pidgeotto | 30 | Normal/Flying | Gust, Sand-Attack, Quick Attack, Whirlwind |
| Pokemon | Level | Type | Moves |
|---|---|---|---|
| Shellder | 30 | Water | Withdraw, Supersonic, Clamp, Aurora Beam |
| Shellder | 30 | Water | Withdraw, Supersonic, Clamp, Aurora Beam |
| Cloyster | 30 | Water/Ice | Withdraw, Supersonic, Clamp, Aurora Beam |
| Pokemon | Level | Type | Moves |
|---|---|---|---|
| Goldeen | 31 | Water | Tail Whip, Supersonic, Horn Attack, Fury Attack |
| Seaking | 31 | Water | Tail Whip, Supersonic, Horn Attack, Fury Attack |
| Pokemon | Level | Type | Moves |
|---|---|---|---|
| Poliwag | 31 | Water | Hypnosis, Water Gun, DoubleSlap, Body Slam |
| Seaking | 31 | Water | Tail Whip, Supersonic, Horn Attack, Fury Attack |