ROM Hack Guides
Home › Pokédex › Mega Slowbro
#0080 · Generation I · form of Slowbro

Mega Slowbro

Water / Psychic · Hermit Crab Pokémon — first seen in Generation I.

Showing the official games. Pick a ROM hack to see how it changes this Pokémon, or compare all of them.

Base stats

HP95
Attack75
Defense180
Sp. Attack130
Sp. Defense80
Speed30
Total590
StatBaseMinMax
HP95300394
Attack75139273
Defense180328504
Sp. Attack130238394
Sp. Defense80148284
Speed3058174

Min and max are at level 100: the minimum is 0 IVs, 0 EVs and a hindering nature, the maximum 31 IVs, 252 EVs and a beneficial nature. Shedinja's HP is always 1 whatever the formula says.

Type defences

Damage Mega Slowbro takes from each attacking type.

×2
BugGhostGrassElectricDark
×½
FightingSteelFireWaterPsychicIce
×1
NormalFlyingPoisonGroundRockDragonFairy

Evolution

SlowpokeSlowpoke#0079
Level 37SlowbroSlowbro#0080Use Galarica CuffGalarian SlowbroGalarian Slowbro#0080Trade holding King’s RockSlowkingSlowking#0199Use Galarica WreathGalarian SlowkingGalarian Slowking#0199

Methods are the current official ones. A ROM hack may change them — trade evolutions especially; the guide table below says which do.

In the ROM hacks it evolves differently

Each guide's own line, in the words its creator published.

In Elite Redux

SlowpokeSlowpokeSlowpoke (Galar)Slowpoke (Galar)
Evolves into Slowbro at level 36Evolves into Slowbro (Galar) at level 36SlowbroSlowbroEvolves into Slowking at level 36Evolves into Slowking (Galar) at level 36SlowkingSlowking
Mega Evolves into Slowking Mega holding the SlowkingiteSlowking MegaSlowking Mega

Other forms

SlowbroSlowbroGalarian SlowbroGalarian Slowbro

Moves by official game

Level-up, TM/HM, tutor and egg moves exactly as each game has them. The newest game this site covers is open; the rest fold out.

Ultra Sun / Ultra Moon20 level-up · 43 TM/HM · 20 tutor

Level-up

LvMoveTypeCat.PowerAcc.PP
—WithdrawWaterStatus——40
1TackleNormalPhysical40100%35
1GrowlNormalStatus—100%40
1WithdrawWaterStatus——40
1CurseGhostStatus——10
1YawnNormalStatus——10
1Heal PulsePsychicStatus——10
5GrowlNormalStatus—100%40
9Water GunWaterSpecial40100%25
14ConfusionPsychicSpecial50100%25
19DisableNormalStatus—100%20
23HeadbuttNormalPhysical70100%15
28Water PulseWaterSpecial60100%20
32Zen HeadbuttPsychicPhysical8090%15
36Slack OffNormalStatus——5
43AmnesiaPsychicStatus——20
49PsychicPsychicSpecial90100%10
55Rain DanceWaterStatus——5
62Psych UpNormalStatus——10
68Heal PulsePsychicStatus——10

TM & HM

TMMoveTypeCat.PowerAcc.PP
TM03PsyshockPsychicSpecial80100%10
TM04Calm MindPsychicStatus——20
TM06ToxicPoisonStatus—90%10
TM07HailIceStatus——10
TM10Hidden PowerNormalSpecial60100%15
TM100ConfideNormalStatus——20
TM11Sunny DayFireStatus——5
TM13Ice BeamIceSpecial90100%10
TM14BlizzardIceSpecial11070%5
TM15Hyper BeamNormalSpecial15090%5
TM16Light ScreenPsychicStatus——30
TM17ProtectNormalStatus——10
TM18Rain DanceWaterStatus——5
TM20SafeguardNormalStatus——25
TM21FrustrationNormalPhysical—100%20
TM26EarthquakeGroundPhysical100100%10
TM27ReturnNormalPhysical—100%20
TM29PsychicPsychicSpecial90100%10
TM30Shadow BallGhostSpecial80100%15
TM31Brick BreakFightingPhysical75100%15
TM32Double TeamNormalStatus——15
TM35FlamethrowerFireSpecial90100%15
TM38Fire BlastFireSpecial11085%5
TM40Aerial AceFlyingPhysical60—20
TM42FacadeNormalPhysical70100%20
TM44RestPsychicStatus——5
TM45AttractNormalStatus—100%15
TM48RoundNormalSpecial60100%15
TM49Echoed VoiceNormalSpecial40100%15
TM52Focus BlastFightingSpecial12070%5
TM55ScaldWaterSpecial80100%15
TM56FlingDarkPhysical—100%10
TM68Giga ImpactNormalPhysical15090%5
TM73Thunder WaveElectricStatus—90%20
TM77Psych UpNormalStatus——10
TM78BulldozeGroundPhysical60100%20
TM85Dream EaterPsychicSpecial100100%15
TM86Grass KnotGrassSpecial—100%20
TM87SwaggerNormalStatus—85%15
TM88Sleep TalkNormalStatus——10
TM90SubstituteNormalStatus——10
TM92Trick RoomPsychicStatus——5
TM94SurfWaterSpecial90100%15

Move tutor

MoveTypeCat.PowerAcc.PP
Ice PunchIcePhysical75100%15
SnoreNormalSpecial50100%15
Icy WindIceSpecial5595%15
Iron TailSteelPhysical10075%15
Focus PunchFightingPhysical150100%20
TrickPsychicStatus—100%10
Magic CoatPsychicStatus——15
RecycleNormalStatus——10
Skill SwapPsychicStatus——10
Signal BeamBugSpecial75100%15
Iron DefenseSteelStatus——15
BlockNormalStatus——5
Water PulseWaterSpecial60100%20
Aqua TailWaterPhysical9090%10
Drain PunchFightingPhysical75100%10
Zen HeadbuttPsychicPhysical8090%15
Wonder RoomPsychicStatus——10
TelekinesisPsychicStatus——15
Foul PlayDarkPhysical95100%15
After YouNormalStatus——15
Sun / Moon20 level-up · 43 TM/HM

Level-up

LvMoveTypeCat.PowerAcc.PP
—WithdrawWaterStatus——40
1TackleNormalPhysical40100%35
1GrowlNormalStatus—100%40
1WithdrawWaterStatus——40
1CurseGhostStatus——10
1YawnNormalStatus——10
1Heal PulsePsychicStatus——10
5GrowlNormalStatus—100%40
9Water GunWaterSpecial40100%25
14ConfusionPsychicSpecial50100%25
19DisableNormalStatus—100%20
23HeadbuttNormalPhysical70100%15
28Water PulseWaterSpecial60100%20
32Zen HeadbuttPsychicPhysical8090%15
36Slack OffNormalStatus——5
43AmnesiaPsychicStatus——20
49PsychicPsychicSpecial90100%10
55Rain DanceWaterStatus——5
62Psych UpNormalStatus——10
68Heal PulsePsychicStatus——10

TM & HM

TMMoveTypeCat.PowerAcc.PP
TM03PsyshockPsychicSpecial80100%10
TM04Calm MindPsychicStatus——20
TM06ToxicPoisonStatus—90%10
TM07HailIceStatus——10
TM10Hidden PowerNormalSpecial60100%15
TM100ConfideNormalStatus——20
TM11Sunny DayFireStatus——5
TM13Ice BeamIceSpecial90100%10
TM14BlizzardIceSpecial11070%5
TM15Hyper BeamNormalSpecial15090%5
TM16Light ScreenPsychicStatus——30
TM17ProtectNormalStatus——10
TM18Rain DanceWaterStatus——5
TM20SafeguardNormalStatus——25
TM21FrustrationNormalPhysical—100%20
TM26EarthquakeGroundPhysical100100%10
TM27ReturnNormalPhysical—100%20
TM29PsychicPsychicSpecial90100%10
TM30Shadow BallGhostSpecial80100%15
TM31Brick BreakFightingPhysical75100%15
TM32Double TeamNormalStatus——15
TM35FlamethrowerFireSpecial90100%15
TM38Fire BlastFireSpecial11085%5
TM40Aerial AceFlyingPhysical60—20
TM42FacadeNormalPhysical70100%20
TM44RestPsychicStatus——5
TM45AttractNormalStatus—100%15
TM48RoundNormalSpecial60100%15
TM49Echoed VoiceNormalSpecial40100%15
TM52Focus BlastFightingSpecial12070%5
TM55ScaldWaterSpecial80100%15
TM56FlingDarkPhysical—100%10
TM68Giga ImpactNormalPhysical15090%5
TM73Thunder WaveElectricStatus—90%20
TM77Psych UpNormalStatus——10
TM78BulldozeGroundPhysical60100%20
TM85Dream EaterPsychicSpecial100100%15
TM86Grass KnotGrassSpecial—100%20
TM87SwaggerNormalStatus—85%15
TM88Sleep TalkNormalStatus——10
TM90SubstituteNormalStatus——10
TM92Trick RoomPsychicStatus——5
TM94SurfWaterSpecial90100%15
Omega Ruby / Alpha Sapphire19 level-up · 50 TM/HM · 19 tutor

Level-up

LvMoveTypeCat.PowerAcc.PP
1TackleNormalPhysical40100%35
1GrowlNormalStatus—100%40
1CurseGhostStatus——10
1YawnNormalStatus——10
1Heal PulsePsychicStatus——10
5GrowlNormalStatus—100%40
9Water GunWaterSpecial40100%25
14ConfusionPsychicSpecial50100%25
19DisableNormalStatus—100%20
23HeadbuttNormalPhysical70100%15
28Water PulseWaterSpecial60100%20
32Zen HeadbuttPsychicPhysical8090%15
36Slack OffNormalStatus——5
37WithdrawWaterStatus——40
43AmnesiaPsychicStatus——20
49PsychicPsychicSpecial90100%10
55Rain DanceWaterStatus——5
62Psych UpNormalStatus——10
68Heal PulsePsychicStatus——10

TM & HM

TMMoveTypeCat.PowerAcc.PP
TM03PsyshockPsychicSpecial80100%10
TM04Calm MindPsychicStatus——20
TM06ToxicPoisonStatus—90%10
TM07HailIceStatus——10
TM10Hidden PowerNormalSpecial60100%15
TM100ConfideNormalStatus——20
TM11Sunny DayFireStatus——5
TM13Ice BeamIceSpecial90100%10
TM14BlizzardIceSpecial11070%5
TM15Hyper BeamNormalSpecial15090%5
TM16Light ScreenPsychicStatus——30
TM17ProtectNormalStatus——10
TM18Rain DanceWaterStatus——5
TM20SafeguardNormalStatus——25
TM21FrustrationNormalPhysical—100%20
TM26EarthquakeGroundPhysical100100%10
TM27ReturnNormalPhysical—100%20
TM28DigGroundPhysical80100%10
TM29PsychicPsychicSpecial90100%10
TM30Shadow BallGhostSpecial80100%15
TM31Brick BreakFightingPhysical75100%15
TM32Double TeamNormalStatus——15
TM35FlamethrowerFireSpecial90100%15
TM38Fire BlastFireSpecial11085%5
TM40Aerial AceFlyingPhysical60—20
TM42FacadeNormalPhysical70100%20
TM44RestPsychicStatus——5
TM45AttractNormalStatus—100%15
TM48RoundNormalSpecial60100%15
TM49Echoed VoiceNormalSpecial40100%15
TM52Focus BlastFightingSpecial12070%5
TM55ScaldWaterSpecial80100%15
TM56FlingDarkPhysical—100%10
TM59IncinerateFireSpecial60100%15
TM68Giga ImpactNormalPhysical15090%5
TM70FlashNormalStatus—100%20
TM73Thunder WaveElectricStatus—90%20
TM77Psych UpNormalStatus——10
TM78BulldozeGroundPhysical60100%20
TM85Dream EaterPsychicSpecial100100%15
TM86Grass KnotGrassSpecial—100%20
TM87SwaggerNormalStatus—85%15
TM88Sleep TalkNormalStatus——10
TM90SubstituteNormalStatus——10
TM92Trick RoomPsychicStatus——5
TM94Secret PowerNormalPhysical70100%20
HM03SurfWaterSpecial90100%15
HM04StrengthNormalPhysical80100%15
HM06Rock SmashFightingPhysical40100%15
HM07DiveWaterPhysical80100%10

Move tutor

MoveTypeCat.PowerAcc.PP
Ice PunchIcePhysical75100%15
SnoreNormalSpecial50100%15
Icy WindIceSpecial5595%15
Iron TailSteelPhysical10075%15
Focus PunchFightingPhysical150100%20
TrickPsychicStatus—100%10
Magic CoatPsychicStatus——15
RecycleNormalStatus——10
Skill SwapPsychicStatus——10
Signal BeamBugSpecial75100%15
Iron DefenseSteelStatus——15
BlockNormalStatus——5
Water PulseWaterSpecial60100%20
Aqua TailWaterPhysical9090%10
Drain PunchFightingPhysical75100%10
Zen HeadbuttPsychicPhysical8090%15
Wonder RoomPsychicStatus——10
Foul PlayDarkPhysical95100%15
After YouNormalStatus——15

Where to find it in the official games

Not obtainable in the wild in any of the 16 official games this site covers. In those games it has to be evolved, traded or bred — or it belongs to a game whose data is not here yet.

Where to find it in the ROM hacks

1 guide on this site put it somewhere you can catch it. Areas link to that guide's own route page, with its own rates and levels.

GuideWhere
Sword and Shield Ultimate Plus
Mega
Dynamax Adventure (Crown Tundra)Raid Den · Lv — · 2

Compare official Mega Slowbro with the ROM hacks →

In the 9 guides that include it

Changed in 7 of 9 guides: retyped in 1, stats in 7, abilities in 5.

Every ROM hack on this site that has Mega Slowbro, and what it did to it. Guides that changed something are first. Click one for that version's full page — locations, moveset and TMs.

GuideTypeTotalAbilities
UnboundChangedWaterPsychic590 +100
+70 Defense, +30 Sp. Atk		Shell Armor, Shell Armor
+ Shell Armor, Shell Armor − Oblivious, Own Tempo, Regenerator
Pokémon Too Many Types 2ChangedWaterPsychic→GatekeepWaterVibes590 +100
+70 Defense, +30 Sp. Atk		—
Radical RedChangedWaterPsychic590 +100
+70 Defense, +30 Sp. Atk		Regenerator, Shell Armor
+ Shell Armor − Oblivious, Own Tempo
Sword and Shield Ultimate PlusChangedWaterPsychic590 +100
+70 Defense, +30 Sp. Atk		Shell Armor
+ Shell Armor − Oblivious, Own Tempo, Regenerator
Elite ReduxChangedWaterPsychic590 +100
+70 Defense, +30 Sp. Atk		Analytic, Unaware, Oblivious
Inclement EmeraldChangedWaterPsychic590 +100
+70 Defense, +30 Sp. Atk		Shell Armor
+ Shell Armor − Oblivious, Own Tempo, Regenerator
Pokémon Emerald ImperiumChangedWaterPsychic590 +100
+70 Defense, +30 Sp. Atk		Regenerator, Regenerator, Shell Armor
+ Shell Armor − Oblivious, Own Tempo
Pokémon SoulgoldUnchangedWaterPsychic590Shell Armor
Pokémon R.O.W.EUnchangedWaterPsychic590Shell Armor

Pokédex entries

What each game says about it, in the games' own words.

Red / BlueThe SHELLDER that is latched onto SLOWPOKE's tail is said to feed on the host's left over scraps.
YellowLives lazily by the sea. If the SHELLDER on its tail comes off, it becomes a SLOWPOKE again.
GoldIf the tail-biting SHELLDER is thrown off in a harsh battle, it reverts to being an ordi­ nary SLOWPOKE.
SilverNaturally dull to begin with, it lost its ability to feel pain due to SHELLDER's seeping poison.
CrystalAn attached SHELLDER won't let go because of the tasty flavor that oozes out of its tail.
Ruby / SapphireSLOWBRO’s tail has a SHELLDER firmly attached with a bite. As a result, the tail can’t be used for fishing anymore. This causes SLOWBRO to grudgingly swim and catch prey instead.
EmeraldIts tail has a SHELLDER firmly attached with a bite. As a result, the tail can’t be used for fishing anymore. This forces it to reluctantly swim and catch prey.
FireRedWhen a SLOWPOKE went hunting in the sea, its tail was bitten by a SHELLDER. That made it evolve into SLOWBRO.
LeafGreenThe SHELLDER that latches onto SLOWPOKE’s tail is said to feed on the host’s leftover scraps.
Diamond / Pearl / PlatinumThough usually dim witted, it seems to become inspired if the SHELLDER on its tail bites down.
HeartGoldIf the tail-biting SHELLDER is thrown off in a harsh battle, it reverts to being an ordinary SLOWPOKE.
SoulSilverNaturally dull to begin with, it lost its ability to feel pain due to SHELLDER’s seeping poison.
Black / White / Black 2 / White 2Though usually dim witted, it seems to become inspired if the Shellder on its tail bites down.
XAn attached Shellder won’t let go because of the tasty flavor that oozes out of its tail.
YWhen a Slowpoke went hunting in the sea, its tail was bitten by a Shellder. That made it evolve into Slowbro.
Omega Ruby / Alpha SapphireSlowbro’s tail has a Shellder firmly attached with a bite. As a result, the tail can’t be used for fishing anymore. This causes Slowbro to grudgingly swim and catch prey instead.
SunIt spaces out while gazing at the sea. With Shellder’s poison flowing through its body, it becomes even spacier.
MoonWhenever Shellder bites down hard on its tail, it gives Slowbro a flash of inspiration...which it forgets a moment later.
Ultra SunSpacing out is basically all it does. It turns back into Slowpoke if its tail, along with Shellder, breaks off.
Ultra MoonShellder, in its greed to suck out more and more sweetness from Slowbro’s tail, has metamorphosed into a spiral-shaped shell.

Names in other languages

Japaneseヤドラン
Japanese (Rōmaji)Yadoran
GermanLahmus
FrenchFlagadoss
SpanishSlowbro
ItalianSlowbro
Korean야도란
Chinese (Simplified)呆壳兽
Chinese (Traditional)呆殼獸

Official data here is present-day reference data from PokéAPI, not a snapshot of any one game's era — the Fairy type and hidden abilities arrived partway through the series, so a difference against an older game can belong to the series rather than to that ROM hack.