The first generation of Pokémon introduced 151 original Pokémon, creating the foundation for one of the most popular gaming franchises in the world. These creatures first appeared in the Japanese Game Boy games Pocket Monsters Red and Green in 1996. International players later experienced the original collection through Pokémon Red and Blue.
Generation 1, also known as Gen 1, takes place primarily in the Kanto region. It introduced familiar Pokémon such as Pikachu, Charizard, Mewtwo, and Mew. Although the franchise has grown significantly since then, these original 151 Pokémon remain an important part of its history.
What Are the 151 Original Pokémon?
The original Pokémon are numbered from 001 to 151 in the National Pokédex. Bulbasaur holds the first position, while Mew occupies the final spot. The collection includes different species, from small creatures that evolve into stronger forms to powerful legendary Pokémon.
Here is the complete list of Generation 1 Pokémon in National Pokédex order:
- 001–025: Bulbasaur, Ivysaur, Venusaur, Charmander, Charmeleon, Charizard, Squirtle, Wartortle, Blastoise, Caterpie, Metapod, Butterfree, Weedle, Kakuna, Beedrill, Pidgey, Pidgeotto, Pidgeot, Rattata, Raticate, Spearow, Fearow, Ekans, Arbok, Pikachu.
- 026–050: Raichu, Sandshrew, Sandslash, Nidoran♀, Nidorina, Nidoqueen, Nidoran♂, Nidorino, Nidoking, Clefairy, Clefable, Vulpix, Ninetales, Jigglypuff, Wigglytuff, Zubat, Golbat, Oddish, Gloom, Vileplume, Paras, Parasect, Venonat, Venomoth, Diglett.
- 051–075: Dugtrio, Meowth, Persian, Psyduck, Golduck, Mankey, Primeape, Growlithe, Arcanine, Poliwag, Poliwhirl, Poliwrath, Abra, Kadabra, Alakazam, Machop, Machoke, Machamp, Bellsprout, Weepinbell, Victreebel, Tentacool, Tentacruel, Geodude, Graveler.
- 076–100: Golem, Ponyta, Rapidash, Slowpoke, Slowbro, Magnemite, Magneton, Farfetch’d, Doduo, Dodrio, Seel, Dewgong, Grimer, Muk, Shellder, Cloyster, Gastly, Haunter, Gengar, Onix, Drowzee, Hypno, Krabby, Kingler, Voltorb.
- 101–125: Electrode, Exeggcute, Exeggutor, Cubone, Marowak, Hitmonlee, Hitmonchan, Lickitung, Koffing, Weezing, Rhyhorn, Rhydon, Chansey, Tangela, Kangaskhan, Horsea, Seadra, Goldeen, Seaking, Staryu, Starmie, Mr. Mime, Scyther, Jynx, Electabuzz.
- 126–151: Magmar, Pinsir, Tauros, Magikarp, Gyarados, Lapras, Ditto, Eevee, Vaporeon, Jolteon, Flareon, Porygon, Omanyte, Omastar, Kabuto, Kabutops, Aerodactyl, Snorlax, Articuno, Zapdos, Moltres, Dratini, Dragonair, Dragonite, Mewtwo, Mew.
Which Pokémon Are the Most Famous From Generation 1?
Several original Pokémon became household names because of their designs, abilities, and appearances in games and the animated series.
Pikachu became the franchise’s mascot and is widely recognized even by people who have never played a Pokémon game. Charizard gained popularity as a powerful Fire-type Pokémon, while Bulbasaur, Charmander, and Squirtle became the three classic starter choices in the original games.
Other memorable Pokémon include:
- Mewtwo: A powerful Psychic-type Pokémon created through scientific experiments.
- Mew: A rare Mythical Pokémon associated with the origins of Pokémon genetics.
- Eevee: A unique Pokémon that can evolve into several different forms.
- Snorlax: A large Pokémon famous for sleeping and blocking important routes.
- Gengar: A Ghost-type Pokémon known for its mischievous personality.
These characters helped establish the series’ identity and continue to appear in later games, merchandise, and animated productions.
Why Does Generation 1 Have Only 151 Pokémon?
The original games were developed for the Nintendo Game Boy, which had limited storage and processing power compared with modern consoles. The developers created a collection of 151 species that players could discover, capture, train, evolve, and trade.
The number also gave players a clear goal: complete the Pokédex by recording every original Pokémon. Some species were exclusive to particular versions, encouraging players to trade with friends.
Are There More Than 151 Kanto Pokémon Today?
Yes. Later generations introduced new evolutions and alternate forms for several Generation 1 Pokémon. For example, Pichu was introduced as Pikachu’s pre-evolution in Generation 2, while Sylveon became an additional Eevee evolution in Generation 6.
However, these additions do not change the original count. Generation 1 still contains exactly 151 Pokémon species, from Bulbasaur to Mew.
