Pokemon Let’s Go: Pikachu and Let's Go Eevee have brought the much-loved Pokemon RPG to a wider audience, satisfying veteran trainers and newbies alike. These two games brought us back to Kanto, with the original 151 Pokemon (153 if you include the two new additions Meltan and Melmetal). While this may seem like a lot of Pokemon to a new fan of the franchise, older fans will find this a comparatively small number. Today, there are almost a thousand Pokemon that now exist within the Pokemon universe.

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This number is ever-increasing with new iterations of the famed RPG, but for now, Let's Go will only have the original cast (plus Meltan and Melmetal). Amongst those Pokemon, some are much rarer than others. Here are their locations and how to catch them.

Updated February 17th, 2021 by Michael Christopher: With the neverending rumors of a new Let's Go game on the way, this time focused around Johto, it's easy to forget that the originals are still amazing and playable years after their release. We thought it would be wise to revisit this list and make sure it's up to date for those looking to find the last few elusive Pokemon for their Pokedex.

Bulbasaur

Pokémon Let's Go Bulbasaur
via: tldrgames

The one caveat of the Let's Go games is that you don’t get to pick a starter Pokemon. Well, you get to pick one of two depending on which version of the game you bought, but you don't choose from Bulbasaur, Charmander, or Squirtle. Choosing either Pikachu or Eevee means that Kanto’s three original starters are not as easy to get your hands on.

Luckily, despite being a rare spawn, you can catch yourself a Bulbasaur pretty early on in the game. While traversing Viridian Forest, you may come across a wild Bulbasaur. Bulbasaur is a rare spawn, but thanks to Let’s Go allowing you to see wild Pokemon, it shouldn’t take too long to find one. Additionally, you can get Bulbasaur in Cerulean City from a woman in the house next to the Pokemon Center if you’ve caught 30 Pokemon.

Charmander

Pokémon Let’s Go Charmander
via: Gametimes

Another original starter Pokemon, Charmander, will be high on the list of ‘must-catch Pokemon’ early on in the game. Who doesn’t want to train their adorable Charmander into a formidable Charizard? Again, like Bulbasaur, Charmander will be a rare spawn in the wild. You can find Charmander on routes 3 and 4 and in Rock Tunnel.

If running around in circles waiting for a rare spawn isn’t your cup of tea, you can get Charmander from a trainer across Nugget Bridge in Cerulean City. You’ll have to have caught 50 Pokemon for this particular gift.

Squirtle

Pokémon Let’s Go Squirtle
via: Gamer Heros YouTube

The last original starter Pokemon, Squirtle, won’t be as easy to catch early on in the game. Encountering a Squirtle in the wild will require patience — as with the other two starter Pokemon. However, you won’t stumble across one until routes 24 and 25.

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If you can’t wait that long, after a bit of chasing by Officer Jenny, you’ll finally be able to get a Squirtle from her in Vermillion City, if you have caught at least 60 Pokemon.

Dratini, Dragonair, and Dragonite

Pokémon Let’s Go Dragonite
via: Pokemon Blog

One of the most popular and desired rare Pokemon, other than Mew and Mewtwo, has to be Dratini and its eventual evolutions. As a pure Dragon-type Pokemon, this one will be very high on collectors' lists.

Dratini can be found in the wild on Route 10, but is a very rare spawn. Dragonair can also be found here, but as you might have guessed, it's an even rarer spawn. If evolving your Pokemon isn’t your thing, and you’d rather literally catch them all, Dragonite does spawn in the wild, if very rarely. If you are lucky enough, you will find Dragonite flying over nearly all routes, as a rare spawn.

Articuno

Pokémon Let’s Go Articuno
via: Attack of the Fanboy

One of the three Legendary Birds, Articuno is a difficult catch and can only be found in one place before beating the Elite Four. Whilst traversing the Seafoam Islands you’ll run into puzzles where you need to use Strong Push to move large pillars. Eventually, you’ll come across the Legendary Articuno and have an opportunity to catch it. Be careful, as players have reported Articuno fleeing before they could catch it!

After you’ve beaten the Elite Four, Articuno will spawn in the wild extremely rarely, and you’ll only be able to catch it if you’re on a flying ride Pokemon.

Zapdos

Pokémon Let’s Go Zapdos
via: rpgsite

Again, Zapdos can only be found in one place before beating the Elite Four. The Power Plant just above Lavender Town houses the Legendary Pokemon, but again, be careful as you can lose out on catching it if flees!

After you beat the Elite Four, Zapdos will spawn in the wild. This is very rare, and you’ll only be able to catch it if you’re on a flying Pokemon.

Moltres

Pokémon Let’s Go Moltres
via Gameaxis

The last of the three Legendary Birds, Moltres, can be caught on Victory Road, and is one of the most sought-after Pokemon in the entire game. Don't let it get away from you!

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Again, like the other members of its trio we've just been discussing, Moltres will spawn in the wild extremely rarely after you beat the Elite Four, and you’ll only be able to catch it if you’re on a flying Pokemon.

Mewtwo

Pokémon Let’s Go Mewtwo
via: Nintendo-Insider

The famed Mewtwo makes a thundering return to the Pokemon franchise in Pokemon Let’s Go. This genetically-engineered Pokemon is the ultimate catch for any trainer in the Kanto region.

In order to catch Mewtwo, you’ll first need to beat the Elite 4, and then venture back to Cerulean City. Here in the water west of the city, you’ll find Cerulean Cave. After traversing the cave you will eventually reach Mewtwo waiting for you, ready for an epic battle. Fair warning, be prepared for this battle, as you only get one chance. You’ll need the Master Ball you’ve already collected and Pokemon powerful against psychic type Pokemon.

Aerodactyl

Aerodactyl Pokemon Let's Go
via: Shack News

Aerodactyl is a pretty awesome Pokemon to get in Let’s Go. First off, it’s an ancient Pokemon that needs to be revived in order for you to acquire it. Second, it’s one of the select few ridable Pokemon in Pokemon Let’s Go.

Riding around on a giant prehistoric Pokemon is very, very fun.

To get Aerodactyl you’ll need to return to Pewter City’s Museum of Science with the move Chop Down. You will then be able to get to the back room where someone will give you the Old Amber. Take this Old Amber to Cinnabar Lab on Cinnabar Island, and those brainy scientists will revive Aerodactyl from the Old Amber for you!

Mew

Mew in Lets Go Pikachu

Unfortunately, Mew will never spawn in the wild no matter how long your combo chain is — so give up on searching for a wild Mew, and turn your attention to the only way to get one.

To get your hands on Mew, you need to purchase the Poke Ball Plus. There is no other way around this, so if you truly desire Mew you’ll have to fork out some extra cash to get the Poke Ball Plus. This will allow you to receive Mew as a gift when the 'Communicate' part of the menu opens up later in the game.

NEXT: 25 Side Quests And Hidden Things Casuals Still Haven't Found In Pokemon Let's Go