| DEX↕️ | ✔️ | Name↕️ | Game↕️ | Location↕ |
|---|---|---|---|---|
| 1 | Bulbasaur | Yellow | Received in Cerulean City (If starter Pikachu's friendship is 147+) | |
| 2 | Ivysaur | Yellow | Evolve Bulbasaur (Lv. 16) | |
| 3 | Venusaur | Yellow | Evolve Ivysaur (Lv. 32) | |
| 4 | Charmander | Yellow | Route 24 (From a trainer) | |
| 5 | Charmeleon | Yellow | Evolve Charmander (Lv. 16) | |
| 6 | Charizard | Yellow | Evolve Charmeleon (Lv. 36) | |
| 7 | Squirtle | Yellow | Vermillion City (Officer Jenny) | |
| 8 | Wartortle | Yellow | Evolve Squirtle (Lv. 16) | |
| 9 | Blastoise | Yellow | Evolve Wartortle (Lv. 36) | |
| 10 | Caterpie | Yellow | Viridian Forest | |
| 11 | Metapod | Yellow | Viridian Forest | |
| 12 | Butterfree | Yellow | Evolve Metapod (Lv. 10) | |
| 13 | Weedle | Yellow | Trade | |
| 14 | Kakuna | Yellow | Trade | |
| 15 | Beedrill | Yellow | Trade | |
| 16 | Pidgey | Yellow | Routes 1, 2, 5, 6, 7, 8, 11, 12, 13, 21, 24, 25, Viridian Forest | |
| 17 | Pidgeotto | Yellow | Routes 5, 6, 7, 8, 11, 12, 13, 14, 15, 21, 24, 25, Viridian Forest | |
| 18 | Pidgeot | Yellow | Evolve Pidgeotto (Lv. 36) | |
| 19 | Rattata | Yellow | Routes 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 16, 18, 21, 22, Pokémon Mansion | |
| 20 | Raticate | Yellow | Routes 9, 10, 11, 16, 18, 21, Pokémon Mansion | |
| 21 | Spearow | Yellow | Routes 3, 4, 9, 16, 18, 22 | |
| 22 | Fearow | Yellow | Routes 9, 16, 17, 18, 23 | |
| 23 | Ekans | Yellow | Trade | |
| 24 | Arbok | Yellow | Trade | |
| 25 | Pikachu | Yellow | Starter | |
| 26 | Raichu | Yellow | Trade | |
| 27 | Sandshrew | Yellow | Routes 3, 4, Mt. Moon | |
| 28 | Sandslash | Yellow | Cerulean Cave | |
| 29 | NidoranF | Yellow | Routes 2, 9, 10, 22, Safari Zone | |
| 30 | Nidorina | Yellow | Routes 9, 23, Safari Zone | |
| 31 | Nidoqueen | Yellow | Evolve Nidorina (Moon Stone) | |
| 32 | NidoranM | Yellow | Routes 2, 9, 10, 22, Safari Zone | |
| 33 | Nidorino | Yellow | Routes 9, 23, Safari Zone | |
| 34 | Nidoking | Yellow | Evolve Nidorino (Moon Stone) | |
| 35 | Clefairy | Yellow | Mt. Moon | |
| 36 | Clefable | Yellow | Evolve Clefairy (Moon Stone) | |
| 37 | Vulipx | Yellow | Celadon City (Rocket Game Corner) | |
| 38 | Ninetales | Yellow | Evolve Vulpix (Fire Stone) | |
| 39 | Jigglypuff | Yellow | Routes 5, 6, 7, 8 | |
| 40 | Wigglytuff | Yellow | Celadon City (Rocket Game Corner) | |
| 41 | Zubat | Yellow | Mt. Moon, Rock Tunnel, Seafoam Islands, Victory Road | |
| 42 | Golbat | Yellow | Seafoam Islands, Victory Road, Cerulean Cave | |
| 43 | Oddish | Yellow | Routes 12, 13, 14, 15, 24, 25 | |
| 44 | Gloom | Yellow | Routes 12, 13, 14, 15, Cerulean Cave | |
| 45 | Vileplume | Yellow | Evolve Gloom (Leaf Stone) | |
| 46 | Paras | Yellow | Mt. Moon, Safari Zone | |
| 47 | Parasect | Yellow | Safari Zone, Cerulean Cave
Trade Tangela on Route 18 | |
| 48 | Venonat | Yellow | Routes 14, 15, 24, 25 | |
| 49 | Venomoth | Yellow | Routes 14, 15, Cerulean Cave | |
| 50 | Diglett | Yellow | Diglett's Cave | |
| 51 | Dugtrio | Yellow | Diglett's Cave
Trade Lickitung on Route 11 | |
| 52 | Meowth | Yellow | Trade | |
| 53 | Persian | Yellow | Trade | |
| 54 | Psyduck | Yellow | Route 6 (Surfing) | |
| 55 | Golduck | Yellow | Route 6 (Surfing) | |
| 56 | Mankey | Yellow | Routes 3, 4, 22, 23 | |
| 57 | Primeape | Yellow | Route 23 | |
| 58 | Growlithe | Yellow | Pokemon Mansion | |
| 59 | Arcanine | Yellow | Evolve Growlithe (Fire Stone) | |
| 60 | Poliwag | Yellow | Routes 6, 10, 11, 12, 13, 17, 18, 19, 20, 21, 22, 23, 24, 25, Pallet Town, Viridian City, Cerulean City, Cerulean Gym, Cerulean Cave, Vermilion City, Celadon City, Fuchsia City, Safari Zone, Seafoam Islands, Cinnabar Island, Indigo Plateau (Good Rod)
Routes 22, 23, Viridian City (Super Rod) | |
| 61 | Poliwhirl | Yellow | Routes 22, 23 (Super Rod) | |
| 62 | Poliwrath | Yellow | Evolve Poliwhirl (Water Stone) | |
| 63 | Abra | Yellow | Routes 5, 6, 7, 8, Celadon City (Rocket Game Corner) | |
| 64 | Kadabra | Yellow | Route 8 | |
| 65 | Alakazam | Yellow | Evolve Kadabra (Trade) | |
| 66 | Machop | Yellow | Route 10, Rock Tunnel | |
| 67 | Machoke | Yellow | Victory Road
Trade Cubone in Underground Path (Kanto Routes 5-6) | |
| 68 | Machamp | Yellow | Trade Cubone for Machoke in Underground Path (Kanto Routes 5-6) (Evolves immediately) | |
| 69 | Bellsprout | Yellow | Routes 12, 13, 14, 15, 24, 25 | |
| 70 | Weepinbell | Yellow | Routes 12, 13, 14, 15, Cerulean Cave | |
| 71 | Victreebel | Yellow | Evolve Weepinbell (Leaf Stone) | |
| 72 | Tentacool | Yellow | Routes 19, 20, 21, Seafoam Islands (Surfing)
Routes 11, 13, 17, 18, 19, 20, 21, Pallet Town, Vermilion City, Cinnabar Island (Super Rod) | |
| 73 | Tentacruel | Yellow | Routes 19, 20, 21 (Super Rod) | |
| 74 | Geodude | Yellow | Mt. Moon, Rock Tunnel, Victory Road | |
| 75 | Graveler | Yellow | Victory Road, Cerulean Cave | |
| 76 | Golem | Yellow | Evolve Graveler (Trade) | |
| 77 | Ponyta | Yellow | Route 17 | |
| 78 | Rapidash | Yellow | Evolve Ponyta (Lv. 40) | |
| 79 | Slowpoke | Yellow | Seafoam Islands Routes 12, 13 (Surfing) | |
| 80 | Slowbro | Yellow | Routes 12, 13 (Surfing) Seafoam Islands (Walking) | |
| 81 | Magnemite | Yellow | Route 10, Power Plant | |
| 82 | Magneton | Yellow | Power Plant | |
| 83 | Farfetch'd | Yellow | Routes 12, 13 | |
| 84 | Doduo | Yellow | Routes 16, 17, 18 | |
| 85 | Dodrio | Yellow | Route 17 | |
| 86 | Seel | Yellow | Seafoam Islands | |
| 87 | Dewgong | Yellow | Seafoam Islands
Trade Growlithe at the Pokemon Lab | |
| 88 | Grimer | Yellow | Pokemon Mansion, Power Plant | |
| 89 | Muk | Yellow | Pokemon Mansion, Power Plant
Trade Kangaskhan at the Pokemon Lab | |
| 90 | Shellder | Yellow | Routes 17, 18, Vermilion City Harbor (Super Rod) | |
| 91 | Cloyster | Yellow | Evolve Shellder (Water Stone) | |
| 92 | Gastly | Yellow | Pokemon Tower | |
| 93 | Haunter | Yellow | Pokemon Tower | |
| 94 | Gengar | Yellow | Evolve Haunter (Trade) | |
| 95 | Onix | Yellow | Rock Tunnel, Victory Road | |
| 96 | Drowzee | Yellow | Route 11 | |
| 97 | Hypno | Yellow | Evolve Drowzee (Lv. 26) | |
| 98 | Krabby | Yellow | Routes 10, 25, Seafoam Islands (Super Rod) Seafoam Islands | |
| 99 | Kingler | Yellow | Routes 10, 25 (Super Rod)
Seafoam Islands | |
| 100 | Voltorb | Yellow | Power Plant | |
| 101 | Electrode | Yellow | Power Plant | |
| 102 | Exeggcute | Yellow | Safari Zone | |
| 103 | Exeggutor | Yellow | Evolve Exeggcute (Leaf Stone) | |
| 104 | Cubone | Yellow | Pokemon Tower, Safari Zone | |
| 105 | Marowak | Yellow | Safari Zone | |
| 106 | Hitmonlee | Yellow | Received from the master of the Fighting Dojo in Saffron City | |
| 107 | Hitmonchan | Yellow | Received from the master of the Fighting Dojo in Saffron City | |
| 108 | Lickitung | Yellow | Cerulean Cave | |
| 109 | Koffing | Yellow | Trade | |
| 110 | Weezing | Yellow | Trade | |
| 111 | Rhyhorn | Yellow | Safari Zone, Cerulean Cave | |
| 112 | Rhydon | Yellow | Cerulean Cave
Trade Golduck at the Pokemon Lab | |
| 113 | Chansey | Yellow | Safari Zone, Cerulean Cave | |
| 114 | Tangela | Yellow | Safari Zone | |
| 115 | Kangaskhan | Yellow | Safari Zone | |
| 116 | Horsea | Yellow | Routes 10, 11, 12, 13, Vermilion City (Super Rod) | |
| 117 | Seadra | Yellow | Routes 12, 13 (Super Rod) | |
| 118 | Goldeen | Yellow | Routes 6, 10, 11, 12, 13, 17, 18, 19, 20, 21, 22, 23, 24, 25, Pallet Town, Viridian City, Cerulean City, Vermilion City, Celadon City, Fuchsia City, Safari Zone, Seafoam Islands, Cinnabar Island, Indigo Plateau, Cerulean Cave (Good Rod)
Routes 6, 24, Cerulean City, Celadon City, Cerulean Cave (Super Rod) | |
| 119 | Seaking | Yellow | Route 24, Cerulean City, Cerulean Cave (Super Rod) | |
| 120 | Staryu | Yellow | Seafoam Islands (Surfing)
Routes 19, 20, 21, Pallet Town, Vermilion City Harbor, Cinnabar Island, Seafoam Islands (Super Rod) | |
| 121 | Starmie | Yellow | Evolve Staryu (Water Stone) | |
| 122 | Mr. Mime | Yellow | Trade Clefairy on Route 2 | |
| 123 | Scyther | Yellow | Safari Zone Celadon City (Rocket Game Corner) | |
| 124 | Jynx | Yellow | Trade | |
| 125 | Electabuzz | Yellow | Trade | |
| 126 | Magmar | Yellow | Trade | |
| 127 | Pinsir | Yellow | Safari Zone, Celadon City (Rocket Game Corner) | |
| 128 | Tauros | Yellow | Safari Zone | |
| 129 | Magikarp | Yellow | Routes 6, 10, 11, 12, 13, 17, 18, 19, 20, 21, 22, 23, 24, 25, Pallet Town, Viridian City, Cerulean City, Vermilion City, Celadon City, Fuchsia City, Safari Zone, Seafoam Islands, Cinnabar Island, Indigo Plateau, Cerulean Cave (Old Rod)
Fuchsia City, Safari Zone (Super Rod) | |
| 130 | Gyarados | Yellow | Fuchsia City (Super Rod) | |
| 131 | Lapras | Yellow | Received from a person in Silph Co. (Saffron City) | |
| 132 | Ditto | Yellow | Pokemon Mansion, Cerulean Cave | |
| 133 | Eevee | Yellow | Received from a person in Celadon Mansion | |
| 134 | Vaporeon | Yellow | Evolve Eevee (Water Stone) | |
| 135 | Jolteon | Yellow | Evolve Eevee (Thunder Stone) | |
| 136 | Flareon | Yellow | Evolve Eevee (Fire Stone) | |
| 137 | Porygon | Yellow | Rocket Game Corner | |
| 138 | Omanyte | Yellow | Helix Fossil | |
| 139 | Omastar | Yellow | Evolve Omanyte (Lv. 40) | |
| 140 | Kabuto | Yellow | Dome Fossil | |
| 141 | Kabutops | Yellow | Evolve Kabuto (Lv. 40) | |
| 142 | Aerodactyl | Yellow | Old Amber | |
| 143 | Snorlax | Yellow | Routes 12, 16 (Only two) | |
| 144 | Articuno | Yellow | Seafoam Islands (Only one) | |
| 145 | Zapdos | Yellow | Power Plant (Only one) | |
| 146 | Moltres | Yellow | Victory Road (Only one) | |
| 147 | Dratini | Yellow | Safari Zone (Super Rod) | |
| 148 | Dragonair | Yellow | Safari Zone (Super Rod) | |
| 149 | Dragonite | Yellow | Evolve Dragonair (Lv. 55) | |
| 150 | Mewtwo | Yellow | Cerulean Cave (Only one) | |
| 151 | Mew | Yellow | Event |