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Omastar

#139 in the Yellow Pokédex • Spiral Pokémon

Pokémon Yellow

Sharp beaks ring its mouth. Its shell was too big for it to move freely, so it became extinct.

Pokédexes

Kanto #139

Egg Group

Water 1Water 3

Steps to Hatch

7,680

Effort Values Yielded

2 Def

Gender Ratio

87.5% male / 12.5% female

Capture Rate

45

Base Experience

173
PokémonRequiresEvolution
Omanyte

Omanyte

#138

Level 40

Omastar

Omastar

#139

Omanyte

Kabuto

Omastar normal sprite

Normal

Omastar

Spiral Pokémon

#139
RockWater

Height

1 m

Weight

35 kg

Base XP

173

HP

70

Attack

60

Defense

125

Sp. Atk

115

Sp. Def

115

Speed

55

Total

540

Type Chart

Weaknesses

Takes 4× from

Grass

Takes 2× from

ElectricFightingGround

Resistances

Takes 0.25× from

Fire

Takes 0.5× from

NormalIcePoisonFlying
Class
Description
StartHorn AttackNormalPhysical6510025

StartWater GunWaterSpecial4010025

StartWithdrawWaterStatus--40

34Horn AttackNormalPhysical6510025

39LeerNormalStatus-10030

44Spike CannonNormalPhysical2010015

49Hydro PumpWaterSpecial120805

Class
Description
HM03SurfWaterSpecial9510015

TM06ToxicPoisonStatus-8510

TM07Horn DrillNormalPhysical-305

TM08Body SlamNormalPhysical8510015

TM09Take DownNormalPhysical908520

TM10Double-EdgeNormalPhysical10010015

TM11Bubble BeamWaterSpecial6510020

TM12Water GunWaterSpecial4010025

TM13Ice BeamIceSpecial9510010

TM14BlizzardIceSpecial110905

TM15Hyper BeamNormalSpecial150905

TM17SubmissionFightingPhysical808025

TM19Seismic TossFightingPhysical-10020

TM20RageNormalPhysical2010020

TM31MimicNormalStatus--10

TM32Double TeamNormalStatus--15

TM33ReflectPsychicStatus--20

TM34BideNormalPhysical--10

TM40Skull BashNormalPhysical10010015

TM44RestPsychicStatus--5

TM50SubstituteNormalStatus--10

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.

Y / Pokédex

Omastar

Omastar

#139 in the Yellow Pokédex • Spiral Pokémon

Pokémon Yellow

Sharp beaks ring its mouth. Its shell was too big for it to move freely, so it became extinct.

Pokédexes

Kanto #139

Egg Group

Water 1Water 3

Steps to Hatch

7,680

Effort Values Yielded

2 Def

Gender Ratio

87.5% male / 12.5% female

Capture Rate

45

Base Experience

173
PokémonRequiresEvolution
Omanyte

Omanyte

#138

Level 40

Omastar

Omastar

#139

Omanyte

Kabuto

Omastar normal sprite

Normal

Omastar

Spiral Pokémon

#139
RockWater

Height

1 m

Weight

35 kg

Base XP

173

HP

70

Attack

60

Defense

125

Sp. Atk

115

Sp. Def

115

Speed

55

Total

540

Type Chart

Weaknesses

Takes 4× from

Grass

Takes 2× from

ElectricFightingGround

Resistances

Takes 0.25× from

Fire

Takes 0.5× from

NormalIcePoisonFlying
Class
Description
StartHorn AttackNormalPhysical6510025

StartWater GunWaterSpecial4010025

StartWithdrawWaterStatus--40

34Horn AttackNormalPhysical6510025

39LeerNormalStatus-10030

44Spike CannonNormalPhysical2010015

49Hydro PumpWaterSpecial120805

Class
Description
HM03SurfWaterSpecial9510015

TM06ToxicPoisonStatus-8510

TM07Horn DrillNormalPhysical-305

TM08Body SlamNormalPhysical8510015

TM09Take DownNormalPhysical908520

TM10Double-EdgeNormalPhysical10010015

TM11Bubble BeamWaterSpecial6510020

TM12Water GunWaterSpecial4010025

TM13Ice BeamIceSpecial9510010

TM14BlizzardIceSpecial110905

TM15Hyper BeamNormalSpecial150905

TM17SubmissionFightingPhysical808025

TM19Seismic TossFightingPhysical-10020

TM20RageNormalPhysical2010020

TM31MimicNormalStatus--10

TM32Double TeamNormalStatus--15

TM33ReflectPsychicStatus--20

TM34BideNormalPhysical--10

TM40Skull BashNormalPhysical10010015

TM44RestPsychicStatus--5

TM50SubstituteNormalStatus--10

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.