Pikachu was created as a Pokémon character by Game Freak and first introduced in the Pokémon Red and Blue games.
Pichu, the pre-evolution of Pikachu, was introduced as a new Pokémon species in Pokémon Gold and Silver.
Pikachu was chosen as the official mascot for the Pokémon franchise, gaining worldwide recognition and popularity.
The live-action/CGI hybrid film 'Detective Pikachu' was released, starring Pikachu as the main character voiced by Ryan Reynolds.