Pikachu (peek-ah-choo) is easily the most popular of all the Pokemon. Pikachu is as recognizable in Japan as Mickey Mouse ... and has been seen in movies, on a TV show, as dolls, keychains, phones, and yes .. even underwear.

On the TV show, Pikachu was originally given to Ash by Professor Oak. Pikachu is one of the main characters of the Pokémon TV series and is also Ash's best friend and Pokémon. Pikachu is an adorable electric-mouse Pokémon, who loyally defends his friends Ash, Misty, and Brock and stands up for all Pokémon-kind. Like most Pokémon, Pikachu communicates by repeating his name over and over with his cute, baby-like voice. Pikachu is constantly pursued by the evil Team Rocket.

Evolutionary Stage: either stage 1 or Basic (We don’t know if Pikachu was born a Pichu or not)
Introduced in: I choose you, Pokemon!
Level (approx) : >41
Known attacks:
Thundershock
Thunderbolt
Thunder
Agility
Quick Attack
Charm (In G/S)
Shockwave - A combination of Thunderbolt by Pikachu and Water Gun by Squirtle. Used twice. Sends a stream of electrified water at the target.
Addendum: Pikachu has, at times, demonstrated hand-to-hand (or paw-to-whatever) fighting skills, versus Cubone in “The School of Hard Knocks” and Bellsprout in the Indigo League.
Ash’s Pikachu is reputed to be above average for his species and evolutionary level. Pikachu is content with his current evolution and refuses to accept a Thunderstone. He considers himself to be the “big brother” guardian of Misty’s Togepi, a full time job. While usually obedient to Ash, he will refuse to battle friends (Like Misty and Togepi). Has demonstrated leadership capabilities with other Pokemon.