Barry's Gyarados

Barry's Gyarados (Japanese: ジュンのギャラドス Jun's Gyarados) is the third Pokémon that Barry obtained in the Kanto region.

Personality and Characteristics
As a Magikarp, Gyarados showed typical traits of its species, merely splashing on its place.

After evolving into Gyarados, it's shown to have a fierce temper and wanton destructive tendencies (which again are typical of it's species). Barry often had trouble trying to get it to calm down but when offered help, refused it as it's trainer, it was his responsibility. With a lot of patience, Gyarados learned to listen to his commands.

It was also shown to become a very powerful swimmer after evolving.

Trivia

 * Gyarados is Barry's second dual Water-type Pokémon.