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Omastar

#139 in the FireRed and LeafGreen Pokédex • Spiral Pokémon

FireRed

Its tentacles are highly developed as if they are hands and feet. As soon as it ensnares prey, it bites.

LeafGreen

Despite having strong fangs and tentacles, it went extinct when its heavy shell made it unable to catch prey.

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

Shiny Omastar sprite

Shiny

Omastar

Spiral Pokémon

#139
RockWater

Height

1 m

Weight

35 kg

Base XP

173

Abilities

Swift SwimShell Armor

HP

70

Attack

60

Defense

125

Sp. Atk

115

Sp. Def

70

Speed

55

Total

495

Type Chart

Weaknesses

Takes 4× from

Grass

Takes 2× from

ElectricFightingGround

Resistances

Takes 0.25× from

Fire

Takes 0.5× from

NormalIcePoisonFlying
Class
Description
StartBiteDarkPhysical6010025

The user bites with vicious fangs. It may make the foe flinch.

StartWater GunWaterSpecial4010025

The foe is struck with a lot of water expelled forcibly from the mouth.

StartWithdrawWaterStatus--40

The user withdraws its body in its hard shell, raising its DEFENSE stat.

StartConstrictNormalPhysical1010035

The foe is attacked with long tentacles or vines. It may lower SPEED.

13BiteDarkPhysical6010025

The user bites with vicious fangs. It may make the foe flinch.

19Water GunWaterSpecial4010025

The foe is struck with a lot of water expelled forcibly from the mouth.

25Mud ShotGroundSpecial559515

The user attacks by hurling mud. It also reduces the foe’s SPEED.

31LeerNormalStatus-10030

The foe is given an intimidating look that lowers its DEFENSE stat.

37ProtectNormalStatus--10

Enables the user to evade all attacks. It may fail if used in succession.

40Spike CannonNormalPhysical2010015

Sharp spikes are fired at the foe to strike two to five times.

46TickleNormalStatus-10020

The foe is made to laugh, reducing its ATTACK and DEFENSE stats.

55Ancient PowerRockSpecial601005

An ancient power is used to attack. It may also raise all the user’s stats.

65Hydro PumpWaterSpecial120805

A high volume of water is blasted at the foe under great pressure.

Class
Description
HM03SurfWaterSpecial9510015

A big wave crashes down on the foe. Can also be used for crossing water.

HM06Rock SmashFightingPhysical2010015

An attack that may also cut DEFENSE. It can also smash cracked boulders.

HM07WaterfallWaterPhysical8010015

A powerful charge attack. It can also be used to climb a waterfall.

HM08DiveWaterPhysical6010010

The user dives underwater on the first turn and strikes next turn.

TM03Water PulseWaterSpecial6010020

An attack with a pulsing blast of water. It may also confuse the foe.

TM06ToxicPoisonStatus-8510

A move that badly poisons the foe. Its poison damage worsens every turn.

TM07HailIceStatus--10

A hailstorm lasting five turns damages all Pokémon except the ICE-type.

TM10Hidden PowerNormalSpecial110015

An attack that varies in type and intensity depending on the user.

TM13Ice BeamIceSpecial9510010

The foe is struck with an icy beam. It may freeze the foe solid.

TM14BlizzardIceSpecial120705

The foe is blasted with a blizzard. It may freeze the foe solid.

TM15Hyper BeamNormalSpecial150905

A severely damaging attack that makes the user rest on the next turn.

TM17ProtectNormalStatus--10

Enables the user to evade all attacks. It may fail if used in succession.

TM18Rain DanceWaterStatus--5

A heavy rain falls for five turns, powering up WATER- type moves.

TM21FrustrationNormalPhysical-10020

This attack move grows more powerful the less the user likes its TRAINER.

TM27ReturnNormalPhysical-10020

This attack move grows more powerful the more the user likes its TRAINER.

TM32Double TeamNormalStatus--15

The user creates illusory copies of itself to raise its evasiveness.

TM37SandstormRockStatus--10

A 5-turn sandstorm that damages all types except ROCK, GROUND, and STEEL.

TM39Rock TombRockPhysical508010

Boulders are hurled at the foe. It also lowers the foe’s SPEED if it hits.

TM42FacadeNormalPhysical7010020

An attack that is boosted if user is burned, poisoned, or paralyzed.

TM43Secret PowerNormalPhysical7010020

An attack that may have an additional effect that varies with the terrain.

TM44RestPsychicStatus--5

The user sleeps for two turns to fully restore HP and heal any status problem.

TM45AttractNormalStatus-10015

If it is the other gender, the foe is made infatuated and unlikely to attack.

TM46ThiefDarkPhysical4010010

An attack that may take the foe’s held item if the user isn’t holding one.

Class
Description
Body SlamNormalPhysical8510015

The user drops its full body on the foe. It may leave the foe paralyzed.

Double-EdgeNormalPhysical12010015

A reckless, life- risking tackle that also hurts the user a little.

MimicNormalStatus--10

The user copies the move last used by the foe for the rest of the battle.

Rock SlideRockPhysical759010

Large boulders are hurled at the foe. It may make the foe flinch.

Seismic TossFightingPhysical-10020

A gravity-fed throw that causes damage matching the user’s level.

SubstituteNormalStatus--10

The user creates a decoy using one- quarter of its full HP.

Swift Swim

Raises SPEED in rain.

Doubles Speed during rain.

Shell Armor

Blocks critical hits.

Protects against critical hits.

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.

FR/LG / Pokédex

Omastar

Omastar

#139 in the FireRed and LeafGreen Pokédex • Spiral Pokémon

FireRed

Its tentacles are highly developed as if they are hands and feet. As soon as it ensnares prey, it bites.

LeafGreen

Despite having strong fangs and tentacles, it went extinct when its heavy shell made it unable to catch prey.

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

Shiny Omastar sprite

Shiny

Omastar

Spiral Pokémon

#139
RockWater

Height

1 m

Weight

35 kg

Base XP

173

Abilities

Swift SwimShell Armor

HP

70

Attack

60

Defense

125

Sp. Atk

115

Sp. Def

70

Speed

55

Total

495

Type Chart

Weaknesses

Takes 4× from

Grass

Takes 2× from

ElectricFightingGround

Resistances

Takes 0.25× from

Fire

Takes 0.5× from

NormalIcePoisonFlying
Class
Description
StartBiteDarkPhysical6010025

The user bites with vicious fangs. It may make the foe flinch.

StartWater GunWaterSpecial4010025

The foe is struck with a lot of water expelled forcibly from the mouth.

StartWithdrawWaterStatus--40

The user withdraws its body in its hard shell, raising its DEFENSE stat.

StartConstrictNormalPhysical1010035

The foe is attacked with long tentacles or vines. It may lower SPEED.

13BiteDarkPhysical6010025

The user bites with vicious fangs. It may make the foe flinch.

19Water GunWaterSpecial4010025

The foe is struck with a lot of water expelled forcibly from the mouth.

25Mud ShotGroundSpecial559515

The user attacks by hurling mud. It also reduces the foe’s SPEED.

31LeerNormalStatus-10030

The foe is given an intimidating look that lowers its DEFENSE stat.

37ProtectNormalStatus--10

Enables the user to evade all attacks. It may fail if used in succession.

40Spike CannonNormalPhysical2010015

Sharp spikes are fired at the foe to strike two to five times.

46TickleNormalStatus-10020

The foe is made to laugh, reducing its ATTACK and DEFENSE stats.

55Ancient PowerRockSpecial601005

An ancient power is used to attack. It may also raise all the user’s stats.

65Hydro PumpWaterSpecial120805

A high volume of water is blasted at the foe under great pressure.

Class
Description
HM03SurfWaterSpecial9510015

A big wave crashes down on the foe. Can also be used for crossing water.

HM06Rock SmashFightingPhysical2010015

An attack that may also cut DEFENSE. It can also smash cracked boulders.

HM07WaterfallWaterPhysical8010015

A powerful charge attack. It can also be used to climb a waterfall.

HM08DiveWaterPhysical6010010

The user dives underwater on the first turn and strikes next turn.

TM03Water PulseWaterSpecial6010020

An attack with a pulsing blast of water. It may also confuse the foe.

TM06ToxicPoisonStatus-8510

A move that badly poisons the foe. Its poison damage worsens every turn.

TM07HailIceStatus--10

A hailstorm lasting five turns damages all Pokémon except the ICE-type.

TM10Hidden PowerNormalSpecial110015

An attack that varies in type and intensity depending on the user.

TM13Ice BeamIceSpecial9510010

The foe is struck with an icy beam. It may freeze the foe solid.

TM14BlizzardIceSpecial120705

The foe is blasted with a blizzard. It may freeze the foe solid.

TM15Hyper BeamNormalSpecial150905

A severely damaging attack that makes the user rest on the next turn.

TM17ProtectNormalStatus--10

Enables the user to evade all attacks. It may fail if used in succession.

TM18Rain DanceWaterStatus--5

A heavy rain falls for five turns, powering up WATER- type moves.

TM21FrustrationNormalPhysical-10020

This attack move grows more powerful the less the user likes its TRAINER.

TM27ReturnNormalPhysical-10020

This attack move grows more powerful the more the user likes its TRAINER.

TM32Double TeamNormalStatus--15

The user creates illusory copies of itself to raise its evasiveness.

TM37SandstormRockStatus--10

A 5-turn sandstorm that damages all types except ROCK, GROUND, and STEEL.

TM39Rock TombRockPhysical508010

Boulders are hurled at the foe. It also lowers the foe’s SPEED if it hits.

TM42FacadeNormalPhysical7010020

An attack that is boosted if user is burned, poisoned, or paralyzed.

TM43Secret PowerNormalPhysical7010020

An attack that may have an additional effect that varies with the terrain.

TM44RestPsychicStatus--5

The user sleeps for two turns to fully restore HP and heal any status problem.

TM45AttractNormalStatus-10015

If it is the other gender, the foe is made infatuated and unlikely to attack.

TM46ThiefDarkPhysical4010010

An attack that may take the foe’s held item if the user isn’t holding one.

Class
Description
Body SlamNormalPhysical8510015

The user drops its full body on the foe. It may leave the foe paralyzed.

Double-EdgeNormalPhysical12010015

A reckless, life- risking tackle that also hurts the user a little.

MimicNormalStatus--10

The user copies the move last used by the foe for the rest of the battle.

Rock SlideRockPhysical759010

Large boulders are hurled at the foe. It may make the foe flinch.

Seismic TossFightingPhysical-10020

A gravity-fed throw that causes damage matching the user’s level.

SubstituteNormalStatus--10

The user creates a decoy using one- quarter of its full HP.

Swift Swim

Raises SPEED in rain.

Doubles Speed during rain.

Shell Armor

Blocks critical hits.

Protects against critical hits.

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.