Blue

Blue is Red's childhood friend from Pallet Town, though the two of them prefer to call each other rivals. As the grandson of the famous Professor Oak, Blue strives to make a name for himself and much of his time is spent training to become a stronger, intellectual Pokémon trainer. His attitude does not make him many friends, but he is often associated with elite company.

Blue was first introduced in Pokémon Red, Pokémon Blue and Pokémon Green versions.