Location, Johto
Unknown; All Rattata: 5 species in 1 game
Unknown Area; All Rattata: 5 species across 2 versions
| Species | Method | Levels | Chance | Game page |
|---|---|---|---|---|
 Rattata | Walking in tall grass or a cave | 20 | up to 60% | All places |
 Goldeen | Fishing with a good rod | 10 to 20 | 100% | All places |
| Goldeen | Fishing with an old rod | 10 to 20 | 100% | All places |
| Goldeen | Fishing with a super rod | 10 to 20 | 100% | All places |
 Magikarp | Surfing | 10 to 20 | 100% | All places |
 Zigzagoon | Walking in tall grass or a cave | 20 | 40% | All places |
 Bidoof | Walking in tall grass or a cave | 20 | 40% | All places |