Route 4
Kanto region · Generation I
Good Rod
| Pokemon | Level | Chance |
|---|---|---|
 #116 Horsea | Lv. 5–15 | 60% |
 #129 Magikarp | Lv. 5–15 | 20% |
 #098 Krabby | Lv. 5–15 | 20% |
Super Rod
| Pokemon | Level | Chance |
|---|---|---|
| #116 Horsea | Lv. 15–25 | 40% |
 #130 Gyarados | Lv. 15–25 | 15% |
 #054 Psyduck | Lv. 25–35 | 1% |
Old Rod
| Pokemon | Level | Chance |
|---|---|---|
| #129 Magikarp | Lv. 5 | 70% |
Surfing
| Pokemon | Level | Chance |
|---|---|---|
 #072 Tentacool | Lv. 5–10 | 60% |
Walking
| Pokemon | Level | Chance |
|---|---|---|
 #021 Spearow | Lv. 8 | 20% |
 #019 Rattata | Lv. 10 | 20% |
 #023 Ekans | Lv. 6 | 10% |
 #027 Sandshrew | Lv. 6 | 10% |
 #056 Mankey | Lv. 9 | 15% |