For a limited time, Trainers playing the download version of Pokémon Ultra Sun or Pokémon Ultra Moon can receive a present of 12 Quick Balls. If you download one of these games from Nintendo eShop by Wednesday, January 10, 2018, you can receive a present of 12 Quick Balls via a special code. Use a Quick Ball at the start of a battle to have a better chance of catching a wild Pokémon. The code distribution will be available from Friday, November 17, 2017, until Wednesday, January 10, 2018. Be sure to enter the special code into your game by November 30, 2018.