The Legendary duo of Palkia and Dialga leads the year-long parade of Legendary Pokémon. Palkia and Dialga are now officially available at participating GameStop and GAME stores until February 28, 2018. Visit GameStop or GAME and you can receive a code to get Palkia in your Pokémon Ultra Sun or Pokémon Sun game, or Dialga in your Pokémon Ultra Moon or Pokémon Moon game. The Legendary duo is significantly stronger in the latest duo of Pokémon games. All Palkia and Dialga codes must be redeemed in your game by May 28, 2018.