Dittobase

Home

Games

Pokémon GO
Pokopia
Pokémon Unite

Cards

TCG Pocket
Pokémon TCG

Main Series

Legends Z-A
Scarlet & Violet
HOME
Legends: Arceus
Brilliant Diamond and Shining Pearl
Sword and Shield
Let's Go, Pikachu! and Eevee!
Ultra Sun and Ultra Moon
Sun and Moon
Omega Ruby and Alpha Sapphire
X and Y
Black 2 and White 2
Black and White
HeartGold and SoulSilver
Platinum
Diamond and Pearl
Emerald
FireRed and LeafGreen
Ruby and Sapphire
Crystal
Gold and Silver
Yellow
Red and Blue

Tools

HeartGold and SoulSilver

Game

HeartGold and SoulSilver

News

Updates for this game hub

Guides

Johto mechanics and tips

Pokédex

Stats, moves, and locations

Moves

Power, accuracy, and learners

Abilities

Effects and Pokémon lists

Items

Bags, machines, and effects

Egg Groups

Breeding groups and members

HG/SS / Pokédex

Gyarados

Gyarados

#77 in the HeartGold & SoulSilver Pokédex • Atrocious Pokémon

Gyarados

#77 in the HeartGold & SoulSilver Pokédex • Atrocious Pokémon

Stats

Base stat spread shown as a hex chart and supporting stat bars.

Min

Max

HP

95

300

394

Attack

125

229

383

Defense

79

146

282

Sp. Atk

60

112

240

Sp. Def

100

184

328

Speed

81

150

287

Total

540

Ranges are for Level 100. Max assumes a beneficial nature, 252 EVs, and 31 IVs; min assumes a hindering nature, 0 EVs, and 0 IVs.

Magikarp

Lapras

Gyarados normal sprite

Normal

Shiny Gyarados sprite

Shiny

Gyarados

Atrocious Pokémon

#77
WaterFlying

Height

6.5 m (21'04")

Weight

235 kg (518.1 lbs)

Abilities

Intimidate

It's Super Effective

Damage multipliers Gyarados takes from each attacking type, sorted from worst weakness to best resistance.

Weak to

Electric

Rock

Resists

Ground

Fire

0.5×

Water

0.5×

Fighting

0.5×

Bug

0.5×

Steel

0.5×

Growth

EV yield, catch rate, and experience details for this Pokémon.
Pokédexes
Updated Johto #77
EV yield
2 Atk
Catch rate
45
Base Exp.
189

Eggs

Egg groups, gender ratio, and hatching details for this Pokémon.
Egg Groups
Water 2Dragon
Gender
50% male
50% female
Egg cycles
5 (1,280 steps)

Lore

Version-specific Pokédex entries for this Pokémon.
Pokémon HeartGold box art

HeartGold

They say that during past strife, GYARADOS would appear and leave blazing ruins in its wake.

Pokémon SoulSilver box art

SoulSilver

Once it appears, it goes on a rampage. It remains enraged until it demolishes everything around it.

Evolution

Evolution requirements shown in a compact table or chain view.
PokémonRequiresEvolution
Magikarp

Magikarp

#76

Level 20

Gyarados

Gyarados

#77

Encounters

Known encounter locations for this Pokémon in this game.
HeartGold
LocationMethodLevelChanceConditions

Lake of Rage

Fishing with a Good Rod2010%

-

Lake of Rage

Fishing with a Super Rod4030%

-

Lake of Rage

Surfing10-205%

-

Lake of Rage

Surfing10-204%

-

Lake of Rage

Surfing10-201%

-

Lake of Rage

Static encounter, only one chance30100%

-

Seafoam Islands

Seafoam Islands (B4F)

Fishing with a Super Rod4040%

-

Mt. Silver

Mount Silver (1F)

Fishing with a Good Rod2010%

At night

Mt. Silver

Mount Silver (1F)

Fishing with a Super Rod4040%

-

Mt. Silver

Mount Silver (1F)

Fishing with a Super Rod4030%

At night

Mt. Silver

Mount Silver (1F)

Fishing with a Super Rod4010%

-

Fuchsia City

Fishing with a Good Rod2010%

-

Fuchsia City

Fishing with a Super Rod4030%

-

Cerulean Cave

Cerulean Cave (1F)

Fishing with a Super Rod4015%

-

Cerulean Cave

Cerulean Cave (1F)

Fishing with a Super Rod4010%

-

Cerulean Cave

Cerulean Cave (1F)

Fishing with a Super Rod405%

-

Cerulean Cave

Cerulean Cave (2F)

Fishing with a Super Rod4015%

-

Cerulean Cave

Cerulean Cave (2F)

Fishing with a Super Rod4010%

-

Cerulean Cave

Cerulean Cave (2F)

Fishing with a Super Rod405%

-

Cerulean Cave

Cerulean Cave (B1F)

Fishing with a Super Rod4015%

-

Cerulean Cave

Cerulean Cave (B1F)

Fishing with a Super Rod4010%

-

Cerulean Cave

Cerulean Cave (B1F)

Fishing with a Super Rod405%

-

Johto Safari Zone

Safari Zone Marshland

Fishing with a Super Rod3610%

-

Johto Safari Zone

Safari Zone Marshland

Fishing with a Super Rod3710%

-

SoulSilver
LocationMethodLevelChanceConditions

Lake of Rage

Fishing with a Good Rod2010%

-

Lake of Rage

Fishing with a Super Rod4030%

-

Lake of Rage

Surfing10-205%

-

Lake of Rage

Surfing10-204%

-

Lake of Rage

Surfing10-201%

-

Lake of Rage

Static encounter, only one chance30100%

-

Seafoam Islands

Seafoam Islands (B4F)

Fishing with a Super Rod4040%

-

Mt. Silver

Mount Silver (1F)

Fishing with a Good Rod2010%

At night

Mt. Silver

Mount Silver (1F)

Fishing with a Super Rod4040%

-

Mt. Silver

Mount Silver (1F)

Fishing with a Super Rod4030%

At night

Mt. Silver

Mount Silver (1F)

Fishing with a Super Rod4010%

-

Fuchsia City

Fishing with a Good Rod2010%

-

Fuchsia City

Fishing with a Super Rod4030%

-

Cerulean Cave

Cerulean Cave (1F)

Fishing with a Super Rod4015%

-

Cerulean Cave

Cerulean Cave (1F)

Fishing with a Super Rod4010%

-

Cerulean Cave

Cerulean Cave (1F)

Fishing with a Super Rod405%

-

Cerulean Cave

Cerulean Cave (2F)

Fishing with a Super Rod4015%

-

Cerulean Cave

Cerulean Cave (2F)

Fishing with a Super Rod4010%

-

Cerulean Cave

Cerulean Cave (2F)

Fishing with a Super Rod405%

-

Cerulean Cave

Cerulean Cave (B1F)

Fishing with a Super Rod4015%

-

Cerulean Cave

Cerulean Cave (B1F)

Fishing with a Super Rod4010%

-

Cerulean Cave

Cerulean Cave (B1F)

Fishing with a Super Rod405%

-

Johto Safari Zone

Safari Zone Marshland

Fishing with a Super Rod3610%

-

Johto Safari Zone

Safari Zone Marshland

Fishing with a Super Rod3710%

-

Moves

Moves this Pokémon learns naturally by reaching specific levels.
Class
Description
StartThrashNormalPhysical9010020

The user rampages and attacks for two to three turns. It then becomes confused, however.

20BiteDarkPhysical6010025

The foe is bitten with viciously sharp fangs. It may make the target flinch.

23Dragon RageDragonSpecial-10010

The foe is stricken by a shock wave. This attack always inflicts 40 HP damage.

26LeerNormalStatus-10030

The foe is given an intimidating leer with sharp eyes. The target’s Defense stat is reduced.

29TwisterDragonSpecial4010020

The user whips up a vicious tornado to tear at the foe. It may also make the foe flinch.

32Ice FangIcePhysical659515

The user bites with cold-infused fangs. It may also make the foe flinch or freeze.

35Aqua TailWaterPhysical909010

The user attacks by swinging its tail as if it were a vicious wave in a raging storm.

38Rain DanceWaterStatus--5

The user summons a heavy rain that falls for five turns, powering up Water- type moves.

41Hydro PumpWaterSpecial120805

The foe is blasted by a huge volume of water launched under great pressure.

44Dragon DanceDragonStatus--20

The user vigorously performs a mystic, powerful dance that boosts its Attack and Speed stats.

47Hyper BeamNormalSpecial150905

The foe is attacked with a powerful beam. The user must rest on the next turn to regain its energy.

Machines

Moves this Pokémon can learn from Technical Machines and Hidden Machines in Pokémon HeartGold and SoulSilver.
Class
Description
TM03Water PulseWaterSpecial6010020

The user attacks the foe with a pulsing blast of water. It may also confuse the foe.

TM05RoarNormalStatus-10020

The foe is scared off, to be replaced by another Pokémon in its party. In the wild, the battle ends.

TM06ToxicPoisonStatus-8510

A move that leaves the target badly poisoned. Its poison damage worsens every turn.

TM07HailIceStatus--10

The user summons a hailstorm lasting five turns. It damages all Pokémon except the Ice type.

TM10Hidden PowerNormalSpecial110015

A unique attack that varies in type and intensity depending on the Pokémon using it.

TM12TauntDarkStatus-10020

The foe is taunted into a rage that allows it to use only attack moves for two to four turns.

TM13Ice BeamIceSpecial9510010

The foe is struck with an icy-cold beam of energy. It may also freeze the target solid.

TM14BlizzardIceSpecial120705

A howling blizzard is summoned to strike the foe. It may also freeze the target solid.

TM15Hyper BeamNormalSpecial150905

The foe is attacked with a powerful beam. The user must rest on the next turn to regain its energy.

TM17ProtectNormalStatus--10

It enables the user to evade all attacks. Its chance of failing rises if it is used in succession.

TM18Rain DanceWaterStatus--5

The user summons a heavy rain that falls for five turns, powering up Water- type moves.

TM21FrustrationNormalPhysical-10020

A full-power attack that grows more powerful the less the user likes its Trainer.

TM24ThunderboltElectricSpecial9510015

A strong electric blast is loosed at the foe. It may also leave the foe paralyzed.

TM25ThunderElectricSpecial1207010

A wicked thunderbolt is dropped on the foe to inflict damage. It may also leave the target paralyzed.

TM26EarthquakeGroundPhysical10010010

The user sets off an earthquake that hits all the Pokémon in the battle.

TM27ReturnNormalPhysical-10020

A full-power attack that grows more powerful the more the user likes its Trainer.

TM32Double TeamNormalStatus--15

By moving rapidly, the user makes illusory copies of itself to raise its evasiveness.

TM35FlamethrowerFireSpecial9510015

The foe is scorched with an intense blast of fire. The target may also be left with a burn.

TM37SandstormRockStatus--10

A five-turn sand­ storm is summoned to hurt all combatant types except Rock, Ground, and Steel.

TM38Fire BlastFireSpecial120855

The foe is attacked with an intense blast of all-consuming fire. It may also leave the target with a burn.

TM41TormentDarkStatus-10015

The user torments and enrages the foe, making it incapable of using the same move twice in a row.

TM42FacadeNormalPhysical7010020

An attack move that doubles its power if the user is poisoned, paralyzed, or has a burn.

TM43Secret PowerNormalPhysical7010020

The user attacks with a secret power. Its added effects vary depending on the user’s environment.

TM44RestPsychicStatus--5

The user goes to sleep for two turns. It fully restores the user’s HP and heals any status problem.

TM45AttractNormalStatus-10015

If it is the opposite gender of the user, the foe becomes infatuated and less likely to attack.

TM55BrineWaterSpecial6510010

If the foe’s HP is down to about half, this attack will hit with double the power.

TM58EndureNormalStatus--10

The user endures any attack with at least 1 HP. Its chance of failing rises if it is used in succession.

TM59Dragon PulseDragonSpecial9010010

The foe is attacked with a shock wave generated by the user’s gaping mouth.

TM66PaybackDarkPhysical5010010

If the user can use this attack after the foe attacks, its power is doubled.

TM68Giga ImpactNormalPhysical150905

The user charges at the foe using every bit of its power. The user must rest on the next turn.

TM71Stone EdgeRockPhysical100805

The user stabs the foe with a sharpened stone. It has a high critical-hit ratio.

TM72AvalancheIcePhysical6010010

An attack move that inflicts double the damage if the user has been hurt by the foe in the same turn.

TM73Thunder WaveElectricStatus-10020

A weak electric charge is launched at the foe. It causes paralysis if it hits.

TM78CaptivateNormalStatus-10020

If it is the opposite gender of the user, the foe is charmed into sharply lowering its Sp. Atk stat.

TM79Dark PulseDarkSpecial8010015

The user releases a horrible aura imbued with dark thoughts. It may also make the target flinch.

TM82Sleep TalkNormalStatus--10

While it is asleep, the user randomly uses one of the moves it knows.

TM83Natural GiftNormalPhysical-10015

The user draws power to attack by using its held Berry. The Berry determines its type and power.

TM87SwaggerNormalStatus-9015

The user enrages the foe into confusion. However, it also sharply raises the foe’s Attack stat.

TM90SubstituteNormalStatus--10

The user makes a copy of itself using some of its HP. The copy serves as the user’s decoy.

HM03SurfWaterSpecial9510015

It swamps the entire battlefield with a giant wave. It can also be used for crossing water.

HM04StrengthNormalPhysical8010015

The foe is slugged with a punch thrown at maximum power. It can also be used to move boulders.

HM05WhirlpoolWaterSpecial157015

Traps the foe inside a whirlpool that lasts for two to five turns. The user can pass through whirlpools.

HM06Rock SmashFightingPhysical4010015

The user hits with a punch that may lower the target’s Defense. It can also smash cracked boulders.

HM07WaterfallWaterPhysical8010015

The user charges at the foe rapidly, and may make it flinch. It can also be used to climb a waterfall.

Tutors

Moves this Pokémon can learn from move tutors in this game.
Class
Description
Aqua TailWaterPhysical909010

The user attacks by swinging its tail as if it were a vicious wave in a raging storm.

BounceFlyingPhysical85855

The user bounces up high, then drops on the foe on the second turn. It may also paralyze the foe.

DiveWaterPhysical8010010

A two-turn attack. The user dives underwater on the first turn, then hits on the next turn.

HeadbuttNormalPhysical7010015

The user attacks with its head. It may make the foe flinch. To find Pokémon, hit trees.

Icy WindIceSpecial559515

The user attacks with a gust of chilled air. It also lowers the target’s Speed stat.

Iron HeadSteelPhysical8010015

The foe slams the target with its steel-hard head. It may also make the target flinch.

OutrageDragonPhysical12010015

The user rampages and attacks for two to three turns. However, it then becomes confused.

SnoreNormalSpecial4010015

An attack that can be used only if the user is asleep. The harsh noise may also make the foe flinch.

SpiteGhostStatus-10010

The user looses its grudge on the move last used by the foe by cutting 4 PP from it.

TwisterDragonSpecial4010020

The user whips up a vicious tornado to tear at the foe. It may also make the foe flinch.

UproarNormalSpecial5010010

The user attacks in an uproar for two to five turns. Over that time, no one can fall asleep.

Traits

Ability options available to this Pokémon in this game.

Intimidate

Ability Slot 1

Lowers the foe’s Attack stat.

Lowers opponents' Attack one stage upon entering battle.

#76

Magikarp

#224

Lapras

Join Discord

Join a community of over 5,000+ other trainers.

discord.gg/dittobase
Dittobase

© 2026 dittobase.com. All rights reserved.

This website is an independent platform and is not associated with, validated, backed, or sponsored by Nintendo, Game Freak, Niantic, or The Pokémon Company.