Pokémonmade it clear very early on that Ash's Pikachu wouldn't be evolving into a Raichu over the course of the series. While there have been reasons provided by Pikachu over the years for why it ...

Those within the event radius had a chance of catching a Shiny Pikachu, which much like the Red Gyarados, could also be evolved into a shiny Raichu. These have since been made available around the ...