Ash's Pikachu/Games/Event distributions/Pikachu in a cap

These cap-wearing Pikachu are -exclusive Pokémon that debuted in Pokémon Sun and Moon, and were distributed in celebration of the Pokémon anime's 20th movie, I Choose You!, and by extension, the anime's 20th anniversary. Like Ash's Pikachu, these Pikachu are always male and cannot evolve. They also have access to the exclusive Z-Crystal, Pikashunium Z, and its Z-Move,.

In Japan, the Pikachu were distributed via single-use serial code to those who pre-ordered tickets to the 20th movie, with one code per ticket. The Pikachu received depended on the date the player redeemed the code. The codes only worked on Japanese region games. The first time the player uses one of these serial codes, they also received a complimentary Pikashunium Z.

In American, PAL, and Taiwanese region games, the Pikachu were distributed through a single-use public serial code released via the Pokémon website and in a similar vein to the Japanese event—the Pikachu received depended on the date the player redeems the code. The first time the player uses one of these serial codes, they also received a complimentary Pikashunium Z.

A seventh Cap Pikachu, wearing the hat Ash wears in the twentieth movie, debuted in Pokémon Ultra Sun and Ultra Moon. In Japan, it was distributed via QR Code on a special Pokémon Ga-Olé disc. In the Americas, Europe, Australia, and New Zealand, it was distributed via a QR Code that was given to those who attend screenings of the 20th movie.