Question: pokemon let's go pikachu how to find green?
Answer: You can also battle the trainer Green in Pokémon: Let's Go, but you'll need to defeat the Elite Four and capture Mewtwo inside Cerulean Cave to do so. You'll find it northwest of Cerulean City, and once you've beaten Mewtwo and spoken to your rival, go back to Mewtwo's previous location and you'll find Green.