Pokémon Let’s GO has been live for a little over a week and already players are trying to devour every morsel of content Nintendo and Game Freak have packed into the game. As an updated version of Pokémon Yellow, Pokémon Let’s GO offers players a familiar veneer but it also has some unique modern tricks. One of those tricks involves catching a Shiny Mewtwo.

Step 1: Find Mewtwo

To catch a Shiny Mewtwo, Pokémon Let’s GO players must first reach the Mewtwo boss fight in the game. Essentially, they must beat the entire game, go through the Elite Four, and then they will hear word of a mysterious Pokémon in a cave near Cerulean City.

Head to the Cerulean Cave by first traveling across the bridge in the north and then take the Sea Skim towards the left. Enter the cave and face off with Mewtwo, but don’t do anything.

Step 2: Restart Mewtwo Encounter Until Shiny

The trick to catching Shiny Mewtwo in Pokémon Let’s GO involves a bit of save manipulation. Each time that players start the fight with Mewtwo but then quit the game and reload, the Mewtwo will “spawn” as a different version. This gives players the opportunity for that Mewtwo to turn into a Shiny version. It’s important to note that players must trigger the fight for the Mewtwo to actually reveal whether it is shiny or not, which is indicated by a green stomach and tail (normally purple).

shiny mewtwo smash bros

It’s by no means the most glamorous way to farm Shiny Mewtwo but it’s also the only known way to obtain the unique version of the already rare Pokémon.

Reports from Pokémon Let’s GO players have put the chances of encountering a shiny Mewtwo at anywhere from 40 spawn resets to over 4,000. In other words, players should set this as one of the last Pokémon on their shiny hunt, unless they really have some time to kill. And unfortunately, players can't rely on the shiny charm for help, since it requires a full Pokedex.

Before players nab a Shiny Mewtwo they can then set the Pokémon’s nature at the Fortune Teller. By picking a combination of flower colors, the Fortune Teller will change the nature of any caught Pokémon, including Shiny Mewtwo, to better match what the player is looking for. All they need is 10,000 Pokémon dollars.

Pokémon Let’s GO Eevee and Pikachu are available now for Nintendo Switch.