Red +3: Rarely seen in the wild. Huge and vicious, it is capable of destroying entire cities in a rage.
Yellow +2: Brutally vicious and enormously destructive. Known for totally destroying cities in ancient times.
Gold: They say that during past wars, GYARADOS would appear and leave blazing ruins in its wake.
Silver: Once it appears, it goes on a ram page. It remains enraged until it demolishes every thing around it.
Crystal: It appears when ever there is world conflict, burning down any place it travels through.
Ruby: When MAGIKARP evolves into GYARADOS, its brain cells undergo a structural transformation. It is said that this transformation is to blame for this POKéMON’s wildly violent nature.
Sapphire: Once GYARADOS goes on a rampage, its ferociously violent blood doesn’t calm until it has burned everything down. There are records of this POKéMON’s rampages lasting a whole month.
Emerald: It is an extremely vicious and violent POKéMON. When humans begin to fight, it will appear and burn everything to the ground with intensely hot flames.
FireRed: It has an extremely aggressive nature. The HYPER BEAM it shoots from its mouth totally incinerates all targets.
Diamond: Once it appears, its rage never settles until it has razed the fields and mountains around it.
Pearl: In ancient literature, there is a record of a GYARADOS that razed a village when violence flared.
Platinum: Once it begins to rampage, a GYARADOS will burn everything down, even in a harsh storm.
HeartGold: They say that during past strife, GYARADOS would appear and leave blazing ruins in its wake.
SoulSilver: Once it appears, it goes on a rampage. It remains enraged until it demolishes everything around it.
Black +4: Once it begins to rampage, a Gyarados will burn everything down, even in a harsh storm.
X: In ancient literature, there is a record of a Gyarados that razed a village when violence flared.
Omega Ruby: When Magikarp evolves into Gyarados, its brain cells undergo a structural transformation. It is said that this transformation is to blame for this Pokémon’s wildly violent nature.
Alpha Sapphire: Once Gyarados goes on a rampage, its ferociously violent blood doesn’t calm until it has burned everything down. There are records of this Pokémon’s rampages lasting a whole month.
Sun: A tale is told of a town that angered Gyarados. Before the sun rose the next day, flames utterly consumed the town, leaving not a trace behind.
Moon: There are people who swear that any place Gyarados appears is fated for destruction.
Ultra Sun: It fires hyper beams in all directions, burning the surrounding area to ash. There are some regions where it’s called “the deity of destruction.”
Ultra Moon: The energy from evolution stimulated its brain cells strongly, causing it to become very ferocious.
Sword: It has an extremely aggressive nature. The Hyper Beam it shoots from its mouth totally incinerates all targets.
Legends: Arceus: I suspect this Pokémon to be the true identity of a dragon written of in ancient texts, which claimed that it razed an entire village with white-hot beams from its maw.