The Original Pikachu
The original Pikachu, first appeared in Pokémon Red and Blue: February 27, 1996
Christmas Pikachu
Introduced as a Christmas holiday limited Pikachu in Pokémon Go for mobile players.
Halloween Pikachu
Introduced as a Halloween holiday limited Pikachu in Pokémon Go for mobile players.
Gigantamax Pikachu
Introduced in the Sword/Shield Pokémon video game series, this is a new gigantic form of Pikachu.
Special Delivery Pikachu
A promo trading card available for a limited time featuring Pikachu as a delivery man.
Detective Pikachu
First appeared in movie with Ryan Reynolds, then appeared in a video game of the same name.