The Gyarados was first mentioned in The Perfect Match! during Trinity's battle against Misty and her Poliwhirl during the Whirl Cup. It managed to defeat her Poliwhirl, but if was defeated by Misty's Corsola though it battled very hard.
This Pokémon reappeared in a flashback in Espeon, Not Included.
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|Hyper Beam||The Perfect Match!|
|Hydro Pump||The Perfect Match!|
|+ indicates this Pokémon used this move recently.*|
- indicates this Pokémon normally can't use this move.