Between February 13 and March 5, you can stop by GameStop or EB Games to get a code for a silver Bottle Cap in your Pokémon Sun or Pokémon Moon game. To get this silver Bottle Cap, just stop by a participating store and request a code card. The Bottle Cap can be used in the Hyper Training feature to boost the individual strength of one of your Pokémon’s stats to the max. Once you use it, your Pokémon will be even better prepared for tough battles ahead.
Don’t forget that Pokémon must be Lv. 100 before they can participate in Hyper Training. Then, enter the secret code in your Pokémon Sun or Pokémon Moon game to add the Bottle Cap to your inventory. Trade the Bottle Cap with Mr. Hyper in the shopping mall at Hau’oli City to use Hyper Training with your Pokémon of choice. Be sure to enter your code into your game by May 13, 2017. The Bottle Cap code will be available at GameStop and EB Games until March 5, or while supplies last.