The first six were introduced in Pokémon Sun and Moon and were distributed to celebrate the Pokémon anime's twentieth anniversary and movie, I Choose You!. Pikachu in a cap (Japanese: キャップをかぶったピカチュウ Pikachu wearing a cap) or Cap Pikachu are collective terms referring to the eight event male Pikachu variants based on Ash's Pikachu, wearing the hats Ash has worn throughout the anime's history. Pokémon Brilliant Diamond and Shining Pearl.
