
In Mewtwo Strikes Back and its remake Mewtwo Strikes Back-Evolution, Fergus's Gyarados was captured and cloned by Mewtwo. According to James, the Gyarados gathered each year in this location to lay their eggs. In The Pi-Kahuna, multiple Gyarados seen from within the Team Rocket Gyarados submarine, shortly before the onset of a massive, annual tidal wave celebrated by local surfers who were apparently not aware of the annual migration. In Pokémon Shipwreck, four wild Gyarados joined James's Gyarados in using Dragon Rage. After a long absence, it reappeared in Flash of the Titans!, where it battled Leon and his Charizard, and became the first Pokémon in the anime to Dynamax. In Gaining Groudon and The Scuffle of Legends, Gyarados helped stop the feuding of Groudon and Kyogre. It was on a destructive rampage until Lance caught it. Talkin' 'Bout an Evolution and Rage Of Innocence focused on a red Gyarados. In When Regions Collide!, it was revealed that it can Mega Evolve into Mega Gyarados. In the end, she calmed and kept the Gyarados. Prior to the test, Misty was terrified of Gyarados, but in order to pass the test, she had to overcome her fear of it. In Cerulean Blues, Misty obtained a Gyarados after passing the PIA test. It subsequently attacked him with Dragon Rage and left him. In Pokémon Shipwreck, James's Magikarp evolved into a Gyarados after he became frustrated with it and kicked it into the water. Shiny Mega Gyarados in the anime Major appearances James's Gyarados Mega Gyarados is tied with Hoopa Unbound as the tallest Dark-type. With this speed, it has enough power to split large ships in two. Mega Gyarados can launch at Mach Speed by using its orifices to release water from both sides. Despite its brain having a powerful destructive instinct, it will obey a Trainer it truly trusts. All other brain functions cease when Mega Evolution occurs, except for the destructive drive to burn down anything into cinders. There are now four yellowish, spiky fins near its tail: two on its back and two on its underside.ĭue the stress Mega Evolution puts on a Gyarados's body, it becomes even more ferocious than before. Most of the other fins along its back disappear, replaced by two rows of blue spikes. Two large yellow fins with blue spines appear on its back. The yellow spots along its body are replaced by raised red scales, which propel Mega Gyarados through the water. A large spike extends downward underneath its chin, and it now has a black underside with a red stripe around the edges. Its crest is larger and black, and its barbels also gain considerable length. The fins on its cheeks become longer and gain a yellow tint. When it Mega Evolves, Gyarados becomes bulkier. Gyarados can Mega Evolve into Mega Gyarados.

The move Hyper Beam is often associated with Gyarados due to it being being powerful enough to instantly destroy everything it hits. However, Gyarados is rarely seen in the wild. Both Gyarados and its Mega form have demonstrated in the anime that it can leap huge distances both from the water and from the ground, usually several times its own body length.

Gyarados lives in both fresh and salty waters. Some believed any human settlement is fated to be destroyed should a Gyarados appear. A Gyarados's rage won't stop completely until everything is destroyed. These rampages can occur even during a harsh storm. Its rampages have been known to last a month at a time. It appears in times of conflict and destroys the surrounding area. In some regions, Gyarados is called the "deity of destruction" because of this. Gyarados is feared for its fierce temper and wanton destructive tendencies since ancient times. Gyarados's fangs can crush stones and its scales are harder than steel. The process of evolution causes a change in its brain structure that is believed to cause its violent nature. Gyarados's tail fin is similar in structure to the crest on its head, except with a thin, white fin spread between the points. It has small, red eyes, a three-pointed, dark blue crest on its head, and four white, spiky dorsal fins. The barbels are white on a female and blue on a male. It has one pair of barbel and a small white fin on each side of its face. Its mouth is very large and gaping, bearing four pointed teeth and yellow lips. It is mostly blue with a yellow underbelly, and it has a row of yellow spots down each side. Gyarados is a piscine, draconic Pokémon with a long serpentine body covered in slightly overlapping scales.

Gyarados can Mega Evolve into Mega Gyarados using the Gyaradosite. It evolves from Magikarp starting at level 20. Gyarados ( Japanese: ギャラドス Gyarados) is a dual-type Water/ Flying Pokémon introduced in Generation I. Pokémon Brilliant Diamond and Shining Pearl.
