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Pokémon: Let's Go, Pikachu! & Let's Go, Eevee!

The Key Stone

By
Vincent Lau

Let’s pay the Professor a quick visit.

Once you’e acquired the first seven Gym Badges, go back to the Viridian City Gym, located near the north-east corner of Viridian City. As you try to enter, your rival will arrive on the scene. He’ll ask you where to go next. Well, maybe you could try asking Professor Oak.

Back at Oak’s Lab, you’ll bump into Blue, who also happens to be Oak’s grandson. As thanks, he’ll give you a Keystone, plus the Mega Stones for the three original starters. With these, you can Mega Evolve "Venusaur" IconVenusaur, "Charizard" IconCharizard and "Blastoise" IconBlastoise during battles.

Afterwards, exit the lab. You’ll bump into the girl from outside. She’ll casually mention that the Viridian City Gym is now open. That’s… awfully convenient timing, in every sense. Anyway, head back to the Viridian City Gym and open the door.

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Guide Information
  • Publisher
    Pokemon Company International
  • Platforms,
    Switch
  • Genre
    RPG
  • Guide Release
    23 November 2018
  • Last Updated
    19 December 2020
    Version History
  • Guide Author
    Vincent Lau

Share this free guide:

Welcome to our strategy guide for Pokemon: Let’s Go!

  • A complete walkthrough with strategies to defeat all the Kanto Gym Leaders and conquer the Pokémon League.
  • Encounter tables for all the wild Pokémon, including the rare Pokémon with undisclosed habitats in the Pokédex.
  • Explanations of all the gameplay mechanics for both beginner trainers and Pokémon Masters.
  • Where to find all the Master Trainers and hidden battles after beating the game.
  • A handy mini-Pokédex containing the key details for all 153 obtainable Pokémon and where to find them.

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