#3334471 - e621

Ash's hats
(i.e. Satoshi's hats)

Shiny
(lit.: color variation)

First episode

Detective

Leon
(Japanese name of Sparky, i.e. Ritchie's Pikachu)

Clothes-changing
(Cosplay Pikachu)

Pokémon Mystery Dungeon
(lit. PokéDun)

Copy Pikachu (Mewtwo Strikes Back)

Ashchu
(lit.: Satochu)

First-gen goods

Balloon
(Flying Pikachu)

Michael
(Japanese name of Puka, i.e. the surfing pikachu in the episode "The Pi-Kahuna")

Pikapiii

Ash (he's holding the rope)

Wrinkles

Smol pikachu

Cafe Mix

White in places

Got hit

Gigantamax

(puffy)