| No# | Name | Best Found Area | Level | Version |
| 026 | Raichu | / | / | / |
| 027 | Sandshrew | Route 23 | 26 | Blue |
| 028 | Sandslash | / | / | / |
| 029 | Nidoran (F) | Fuchsia City / Safari Zone (Area 3) | 25 | Blue |
| 030 | Nidorina | / | / | / |
| 031 | Nidoqueen | / | / | / |
| 032 | Nidoran (M) | Fuchsia City / Safari Zone (Area 3) | 25 | Red |
| 033 | Nidorino | / | / | / |
| 034 | Nidoking | / | / | / |
| 035 | Clefairy | Mt. Moon | 10 | Blue or Red |
| 036 | Clefable | / | / | / |
| 037 | Vulpix | Cinnabar Island | 35 | Blue |
| 038 | Ninetails | / | / | / |
| 039 | Jigglypuff | Route 3 | 05 | Blue or Red |
| 040 | Wigglytuff | / | / | / |
| 041 | Zubat | Victory Road | 26 | Blue or Red |
| 042 | Golbat | / | / | / |
| 043 | Oddish | Route 14 | 26 | Red |
| 044 | Gloom | / | / | / |
| 045 | Villeplume | / | / | / |
| 046 | Paras | Fuchsia City / Safari Zone (Area 2) | 23 | Blue or Red |
| 047 | Parasect | / | / | / |
| 048 | Venonat | Route 15 | 28 | Blue or Red |
| 049 | Venomoth | / | / | / |
| 050 | Diglett | Diglett's Cave | 22 | Blue or Red |