Pikachu is the finest known of all Pokémon because it is the authorized mascot of the series. It is also one of the principal characters of the Pokémon anime and comic books. In one of the first Pokémon games, "Pokémon Yellow", it is the player's starter Pokémon. It actually symbolizes Pokémon. It was not so high-ranking by the popularity vote in the company to select the mascot. Pikachu is Ash's first Pokémon.