Main Series Home | Red, Green, Blue, and Yellow Home | Red, Green, Blue, and Yellow Pokédex Home

Completing the Pokédex With Gen 1 (Pokémon Japanese Green/International Blue)

There are 151 Pokémon in Japanese Green/International Blue's Pokédex. Only 150 are needed to get the certificate from the Game Freak employee in Celadon City. The game is programmed to accept any 150, meaning if you use the Mew glitch to get Mew, you can skip another Pokémon. This page focuses on getting the 150 Pokémon that aren't Mew.

In order to complete the Pokédex in Pokémon Green/Blue with only Gen 1 games, you will need access to at minimum a copy of Pokémon Red.

Version Exclusives

The following version-exclusive Pokémon have to be traded from another game:

• Ekans, Arbok (Red)
• Oddish, Gloom, Vileplume (Red, Japanese Blue, or Yellow)
• Mankey, Primeape (Red or Yellow)
• Growlithe, Arcanine (Red, Japanese Blue, or Yellow)
• Scyther (Red, Japanese Blue, or Yellow)
• Electabuzz (Red)

Mutually Exclusive Pokémon

Several Pokémon are mutually exclusive, meaning that if you get one species, you cannot get at least one other species. The list of mutually exclusive species is below.

• Bulbasaur/Ivysaur/Venusaur, Charmander/Charmeleon/Charizard, Squirtle/Wartortle/Blastoise
• Hitmonlee, Hitmonchan
• Omanyte/Omastar, Kabuto/Kabutops
• Vaporeon, Jolteon, Flareon

If you have access to Pokémon Stadium, you can get an unlimited number of these by defeating the Elite Four and Rival repeatedly.

Otherwise, you will need multiple files. For Hitmonlee/Hitmonchan and Omanyte/Kabuto, you will need access to Red anyway to complete the Pokédex, so you can pick one of them in Green/Blue and the other in Red.
However, for the starters and Eevee's evolutions, the trade process is a little more complicated.

If you have access to two other games, then each game can pick a different starter and evolve Eevee into a different evolution, and you can trade around to get them all registered in your Pokédex. If you have access to Yellow Version, you can also just trade all the starters from Yellow.
If you only have access to two games total (Green/Blue and Red), you would need to do the following:

• Pick a starter on one game, play until Celadon, and evolve Eevee into one of its evolutions.
• On the second game, pick a different starter, play until Celadon, and pick a different Eevee evolution. (Note: If you are trying to complete the Pokédex on both games, you will actually need for both files to keep their starter in its base form so that you can trade that form.)
• Trade the second game's starter and Eevee evolution to the first game.
• Start a new file on the second game, pick the third starter, and pick the third Eevee evolution in Celadon.

Now you will have two starters and two of Eevee's evolutions on your first file and the third starter and Eevee evolution on the second. At this point, trade back and forth until the game you're trying to complete the Pokédex on has data for each starter and all of Eevee's evolutions.
Note that you will need to trade your starter, Omanyte, and Kabuto at each evolutionary stage, because you only have access to one of each species. This is why I recommended keeping your starter unevolved in the steps above, especially if you're also trying to complete the Pokédex in the second game. Wait until you have all three unevolved starters available, trade them, and then you can go ahead and evolve them (and trade again).

If you have access to Gold, Silver, or Crystal, you wouldn't need to worry about this due to breeding. See the Green/Blue and Gen 2 page for more information.

Trade Evolutions

Four Pokémon evolve by trading: Machoke, Graveler, Kadabra, and Haunter. The easiest way to get data for them is to trade them to another game and immediately trade the newly-evolved Pokémon back.