The original Pokémon Red and Blue games starred trainers named Red, Blue, and Green. They can all be found and battled in Pokémon: Let’s Go, Pikachu! and Pokémon: Let’s Go, Eevee! Here’s how to find and fight Red, Blue, and Green once you’ve trained up your monsters.
Pokémon: Let’s Go includes several major characters featured in the original Pokémon Red, Blue, and Yellow games, such as Professor Oak, Misty, Brock, and rival character Blue, but there are a few extra secrets for those willing to dig deeper. One of them is original protagonist Red, and you can fight him if you know what to do.
Oh — and you can also fight Blue again once you’ve beaten the game, as well as lesser-known trainer Green! Let’s Go is full of way more surprises than just Legendary Pokémon, but you can find out how to catch them with our guide .
According to the fan site Serebii, you can encounter Red in Pokémon: Let’s Go, Pikachu! and Let’s Go, Eevee! but you have to meet certain requirements. Once you’ve defeated the Elite Four and beaten the game, special Master Trainers will appear all over Kanto, each requesting that you battle them with the same Pokémon they are using. Defeat six of them, and you’ll be able to find Red on the map. In order to determine which Master Trainers to fight, explore the map and look for icons above certain characters’ heads.