Omastar (Pokémon)

For Pokémon GO information on this species, see the game's section.
← #138: Omanyte	Pokémon	#140: Kabuto →
This article is about the species. For a specific instance of this species, see Omastar (disambiguation).

Omastar Spiral Pokémon オムスター Omstar #139 Images on the Bulbagarden Archives
Type Rock Water Unknown Unknown Unknown Unknown Unknown Unknown Unknown Unknown Unknown Unknown
Abilities Swift Swim or Shell Armor Cacophony Cacophony Weak Armor Hidden Ability Cacophony Hidden Ability Cacophony Cacophony
Gender ratio Unknown 87.5% male, 12.5% female	Catch rate 45 (11.9%)
Breeding Egg Groups Water 1 and Water 3 Hatch time 30 cycles
Height 3'03" 1.0 m Omastar 0'0" 0 m {{{form2}}} 0'0" 0 m {{{form3}}} 0'0" 0 m {{{form4}}}	Weight 77.2 lbs. 35.0 kg Omastar 0 lbs. 0 kg {{{form2}}} 0 lbs. 0 kg {{{form3}}} 0 lbs. 0 kg {{{form4}}}
Mega Stone [[|]] [[|]]
Base experience yield 199 Gen. I-IV Unknown IV 173 V+	Leveling rate Medium Fast
EV yield Total: 2 Omastar 0 HP 0 Atk 2 Def 0 Sp.Atk 0 Sp.Def 0 Speed 0 HP 0 Atk 0 Def 0 Sp.Atk 0 Sp.Def 0 Speed 0 HP 0 Atk 0 Def 0 Sp.Atk 0 Sp.Def 0 Speed 0 HP 0 Atk 0 Def 0 Sp.Atk 0 Sp.Def 0 Speed
Shape	Footprint {{{form2}}}
Pokédex color   Blue	Base friendship 70
External Links On Smogon Pokédex: Generation I Generation II Generation III Generation IV Generation V Generation VI Generation VII Generation VIII Generation IX Artwork on Bulbagarden Archives

Omastar (Japanese: オムスター Omstar) is a dual-type Rock/Water Fossil Pokémon introduced in Generation I.

It evolves from Omanyte starting at level 40, after it is revived from a Helix Fossil.

Biology

Omastar is a Pokémon similar to an ammonite. Its sky blue body has several tentacles; the tentacles toward the front are shorter and thicker than those in the back. There is a pale yellow, helix spiraled shell on its back. Several sharp spikes line the shell's midsection from the front to about halfway down its back. The shell's rim has two circular indents where Omastar's eyes are visible. Its eyes have yellow sclerae and vertically-slit pupils. It has an oval mouth with a four-sectioned, fang-like beak.

It is believed that Omastar's extinction was a consequence of the increasingly heavy weight of its own shell that affected its mobility, including its hunting. Omastar swam the seas in search of prey, including prehistoric Shellder. Omastar's used its tentacles to ensnare its prey before biting down with the deadly force of its beak. With the shell broken, it would suck out the contents. Omastar was in turn preyed upon by Carracosta. Omastar is thought to be a distant ancestor to Octillery.

In the anime

Omastar in the anime

Major appearances

In Attack of the Prehistoric Pokémon, two Omastar were dormant under Grampa Canyon until a dynamite blast woke them up. The two Omastar chased Ash Ketchum and Team Rocket until Aerodactyl showed up and scared them off.

In Fossil Fools, multiple Omastar were discovered to be living in the Ruins of Alph alongside their pre-evolved form Omanyte. They were moved into a museum at the end of the episode.

In Dealing With Defensive Types!, an Omastar caught Team Rocket trying to steal food from the Canalave Gym kitchen while Ash was having his Gym battle with Byron. It used Water Gun to them blasting off.

Minor appearances

In Pikachu's Vacation, an Omastar was at the Pokémon Theme Park.

In Imitation Confrontation, the Team Rocket trio's fantasy featured an Omastar.

An Omastar appeared in a fantasy in A Ruin with a View.

An Omastar appeared in a fantasy in Where's Armaldo?.

In Lucario and the Mystery of Mew, an Omastar lived in the Tree of Beginning. Another appeared in the movie's opening sequence.

In The Mastermind of Mirage Pokémon, Dr. Yung used a Mirage Omastar.

An Omastar appeared in JN038.

Pokédex entries

Episode Pokémon Source Entry EP046 Omanyte, Omastar, Kabuto, and Kabutops Ash's Pokédex Omanyte and Omastar, Kabuto and Kabutops. It is believed these Pokémon became extinct tens of thousands of years ago. The details of their behavior is shrouded in mystery. Though some have speculated that they may still exist, none of these Pokémon have ever been seen alive.

Episode Pokémon Source Entry EP163 Omastar Ash's Pokédex Omastar, the evolved form of Omanyte. This extinct Pokémon is believed to have used its sharp fangs to break through the shells of its prey in order to feed.

In the manga

Omastar in Pokémon Adventures

In the Pokémon Adventures manga

Main article: Omny

Yellow has an Omastar nicknamed Omny, who she originally obtained from Misty as an Omanyte. He evolved into an Omastar by The Might of... Metapod?!.

In the Pokémon Pocket Monsters manga

An Omastar appeared in Big Rampage at the Safari Zone!?, where it evolved from an Omanyte.

An Omastar appeared in Clefairy Evolves... At Last?!.

An Omastar appeared in The Ancient Pokémon Discovery!.

In the TCG

Main article: Omastar (TCG)

Game data

NPC appearances

• Pokémon Mystery Dungeon: Explorers of Time and Explorers of Darkness: Two Omastar and a Kabutops are the bosses in Brine Cave. They attacked the player and partner without warning but Chatot protected them. Wigglytuff later reveals that they had previously attacked them in but Chatot had saved him.

Pokédex entries

Generation I Kanto #139 Red(ENG) A prehistoric Pokémon that died out when its heavy shell made it impossible to catch prey. Blue Yellow Sharp beaks ring its mouth. Its shell was too big for it to move freely, so it became extinct. Stadium Attacks by ensnaring its enemy with its tentacles and biting with sharp fangs. Its overly-large shell makes it sluggish.

Generation II Johto #221 Gold Apparently, it cracked Shellder's shell with its sharp fangs and sucked out the insides. Silver Once wrapped around its prey, it never lets go. It eats the prey by tearing at it with sharp fangs. Crystal Its heavy shell allowed it to reach only nearby food. This could be the reason it is extinct. Stadium 2 Apparently, it cracked Shellder's shell with its sharp fangs and sucked out the insides.

Generation III Hoenn #— Kanto #139 Ruby Omastar uses its tentacles to capture its prey. It is believed to have become extinct because its shell grew too large and heavy, causing its movements to become too slow and ponderous. Sapphire Emerald An Omastar uses its tentacles to capture its prey. It is believed to have become extinct because its shell grew too large, making its movements slow and ponderous. 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.

Generation IV Sinnoh #— Johto #226 Diamond It is thought that this Pokémon became extinct because its spiral shell grew too large. Pearl Platinum HeartGold Apparently, it cracked Shellder's shell with its sharp fangs and sucked out the insides. SoulSilver Once wrapped around its prey, it never lets go. It eats the prey by tearing at it with sharp fangs.

Generation V Unova #— Black It is thought that this Pokémon became extinct because its spiral shell grew too large. White Black 2 It is thought that this Pokémon became extinct because its spiral shell grew too large. White 2

Generation VI Kalos #— Hoenn #— X Its tentacles are highly developed as if they are hands and feet. As soon as it ensnares prey, it bites. Y Once wrapped around its prey, it never lets go. It eats the prey by tearing at it with sharp fangs. Omega Ruby Omastar uses its tentacles to capture its prey. It is believed to have become extinct because its shell grew too large and heavy, causing its movements to become too slow and ponderous. Alpha Sapphire

Generation VII Alola USUM: #228 Kanto #139 This Pokémon has no Pokédex entries in Sun and Moon. Ultra Sun Its heavy shell is thought to be the reason this ancient Pokémon died out. It's apparently a distant ancestor of Octillery. Ultra Moon It wraps its prey in its tentacles to immobilize them and then finishes them off with its sharp fangs. Let's Go Pikachu Its sharp beak rings its mouth. Its shell was too big for it to move freely, so it became extinct. Let's Go Eevee

Generation VIII Galar Crown of Tundra #124 Sword Weighed down by a large and heavy shell, Omastar couldn’t move very fast. Some say it went extinct because it was unable to catch food. Shield Omastar’s sharp fangs could crush rock, but the Pokémon can attack only the prey that come within reach of its tentacles.

Game locations

Generation I Red Blue Evolve Omanyte Blue (Japan) Evolve Omanyte Yellow Evolve Omanyte

Generation II Gold Silver Time Capsule Crystal Time Capsule

Generation III Ruby Sapphire Trade Emerald Trade FireRed LeafGreen Evolve Omanyte Colosseum Trade XD Trade

Generation IV Diamond Pearl Evolve Omanyte Platinum Evolve Omanyte HeartGold Evolve Omanyte SoulSilver Trade Pal Park Sea

Generation V Black White Evolve Omanyte Black 2 White 2 Evolve Omanyte

Generation VI X Trade Y Evolve Omanyte Omega Ruby Trade Alpha Sapphire Evolve Omanyte

Generation VII Sun Moon Trade Ultra Sun Ultra Moon Evolve Omanyte Let's Go Pikachu Let's Go Eevee Evolve Omanyte

Generation VIII Sword Shield Unobtainable

In side games

Generation I Pinball Evolve Omanyte

Generation II This Pokémon is unavailable in Generation II side games.

Generation III Trozei! Secret Storage 9, Mr. Who's Den MD Red MD Blue Evolve Omanyte

Generation IV MD Time MD Darkness Evolve Omanyte MD Sky Evolve Omanyte Ranger: SoA Sea of Wailord Rumble Bright Beach (Normal Mode A & S)

Generation V Rumble Blast Beach: World Axle - B1F Rumble U Adventure Area: Unexpected Land, Entranceway: A Fateful Showdown!

Generation VI Battle Trozei Safari Jungle: Stage 3Th Shuffle Event: Omastar Appears Event: Great Daily Pokémon (First release) Rumble World Distortion Land: Vast Ocean (All Areas, Entrance Boss)

Generation VII Rumble Rush Jirachi Sea, Bulbasaur Sea, Arceus Sea, Jirachi SeaFinal

Held items

Game		Held Item(s)
Red*	Blue*	Bitter Berry (100%)
Yellow*

Stats

Base stats

Stat		Range
		At Lv. 50	At Lv. 100
HP: 70		130 - 177	250 - 344
Attack: 60		58 - 123	112 - 240
Defense: 125		117 - 194	229 - 383
Sp. Atk: 115		108 - 183	211 - 361
Sp. Def: 70		67 - 134	130 - 262
Speed: 55		54 - 117	103 - 229
Total: 495	Other Pokémon with this total
Minimum stats are calculated with 0 EVs, IVs of 0, and (if applicable) a hindering nature. Maximum stats are calculated with 252 EVs, IVs of 31, and (if applicable) a helpful nature. This Pokémon's Special base stat in Generation I was 115.

Pokéathlon stats

Speed 2/3 ★★☆	Power 3/4 ★★★☆
Skill 4/4 ★★★★	Stamina 2/3 ★★☆
Jump 2/2 ★★	Total 13/16 ★★☆

Type effectiveness

Under normal battle conditions in Generation IX, this Pokémon is:

Damaged normally by: Normal ½× Fighting 2× Flying ½× Poison ½× Ground 2× Rock 1× Bug 1× Ghost 1× Steel 1× Fire ¼× Water 1× Grass 4× Electric 2× Psychic 1× Ice ½× Dragon 1× Dark 1× Fairy 1× None

Weak to: Normal ½× Fighting 2× Flying ½× Poison ½× Ground 2× Rock 1× Bug 1× Ghost 1× Steel 1× Fire ¼× Water 1× Grass 4× Electric 2× Psychic 1× Ice ½× Dragon 1× Dark 1× Fairy 1× None

Immune to: Normal ½× Fighting 2× Flying ½× Poison ½× Ground 2× Rock 1× Bug 1× Ghost 1× Steel 1× Fire ¼× Water 1× Grass 4× Electric 2× Psychic 1× Ice ½× Dragon 1× Dark 1× Fairy 1× None

Resistant to: Normal ½× Fighting 2× Flying ½× Poison ½× Ground 2× Rock 1× Bug 1× Ghost 1× Steel 1× Fire ¼× Water 1× Grass 4× Electric 2× Psychic 1× Ice ½× Dragon 1× Dark 1× Fairy 1× None

Learnset

By leveling up

Generation VIII Other generations: I - II - III - IV - V - VI - VII - IX

Level   Move   Type   Cat.   Pwr.   Acc.   PP 011 Crunch Dark Physical 08080 100100% 15 011 Bind Normal Physical 01515 08585% 20 011 Withdraw Water Status 0000— 00——% 40 011 Rollout Rock Physical 03030 09090% 20 011 Sand Attack Ground Status 0000— 100100% 15 Evo.Evo. Crunch Dark Physical 08080 100100% 15 1515 Water Gun Water Special 04040 100100% 25 2020 Leer Normal Status 0000— 100100% 30 2525 Mud Shot Ground Special 05555 09595% 15 3030 Ancient Power Rock Special 06060 100100% 5 3535 Brine Water Special 06565 100100% 10 4343 Protect Normal Status 0000— 00——% 10 4949 Rock Blast Rock Physical 02525 09090% 10 5656 Surf Water Special 09090 100100% 15 6363 Shell Smash Normal Status 0000— 00——% 15 7070 Hydro Pump Water Special 110110 08080% 5

Bold indicates a move that gets STAB when used by Omastar Italic indicates a move that gets STAB only when used by an Evolution of Omastar Click on the generation numbers at the top to see level-up moves from other generations

By TM/TR

Generation VIII Other generations: I - II - III - IV - V - VI - VII - IX

TM   Move   Type   Cat.   Pwr.   Acc.   PP  TM07 TM07 Pin Missile Bug Physical 02525 095}}95% 20 TM08 TM08 Hyper Beam Normal Special 150150 090}}90% 5 TM09 TM09 Giga Impact Normal Physical 150150 090}}90% 5 TM21 TM21 Rest Psychic Status 0000— 00—}}—% 10 TM22 TM22 Rock Slide Rock Physical 07575 090}}90% 10 TM23 TM23 Thief Dark Physical 06060 100}}100% 25 TM24 TM24 Snore Normal Special 05050 100}}100% 15 TM25 TM25 Protect Normal Status 0000— 00—}}—% 10 TM27 TM27 Icy Wind Ice Special 05555 095}}95% 15 TM31 TM31 Attract Normal Status 0000— 100}}100% 15 TM32 TM32 Sandstorm Rock Status 0000— 00—}}—% 10 TM33 TM33 Rain Dance Water Status 0000— 00—}}—% 5 TM35 TM35 Hail Ice Status 0000— 00—}}—% 10 TM36 TM36 Whirlpool Water Special 03535 085}}85% 15 TM39 TM39 Facade Normal Physical 07070 100}}100% 20 TM45 TM45 Dive Water Physical 08080 100}}100% 10 TM48 TM48 Rock Tomb Rock Physical 06060 095}}95% 15 TM53 TM53 Mud Shot Ground Special 05555 095}}95% 15 TM54 TM54 Rock Blast Rock Physical 02525 090}}90% 10 TM55 TM55 Brine Water Special 06565 100}}100% 10 TM76 TM76 Round Normal Special 06060 100}}100% 15 TR01 TR01 Body Slam Normal Physical 08585 100}}100% 15 TR03 TR03 Hydro Pump Water Special 110110 080}}80% 5 TR04 TR04 Surf Water Special 09090 100}}100% 15 TR05 TR05 Ice Beam Ice Special 09090 100}}100% 10 TR06 TR06 Blizzard Ice Special 110110 070}}70% 5 TR16 TR16 Waterfall Water Physical 08080 100}}100% 15 TR20 TR20 Substitute Normal Status 0000— 00—}}—% 10 TR23 TR23 Spikes Ground Status 0000— 00—}}—% 20 TR26 TR26 Endure Normal Status 0000— 00—}}—% 10 TR27 TR27 Sleep Talk Normal Status 0000— 00—}}—% 10 TR32 TR32 Crunch Dark Physical 08080 100}}100% 15 TR45 TR45 Muddy Water Water Special 09090 085}}85% 10 TR46 TR46 Iron Defense Steel Status 0000— 00—}}—% 15 TR52 TR52 Gyro Ball Steel Physical 0000— 100}}100% 5 TR54 TR54 Toxic Spikes Poison Status 0000— 00—}}—% 20 TR67 TR67 Earth Power Ground Special 09090 100}}100% 10 TR75 TR75 Stone Edge Rock Physical 100100 080}}80% 5 TR76 TR76 Stealth Rock Rock Status 0000— 00—}}—% 20 TR84 TR84 Scald Water Special 08080 100}}100% 15 TR98 TR98 Liquidation Water Physical 08585 100}}100% 10

Bold indicates a move that gets STAB when used by Omastar Italic indicates a move that gets STAB only when used by an Evolution of Omastar Click on the generation numbers at the top to see TM moves from other generations

By breeding

Generation VIII Other generations: II - III - IV - V - VI - VII - IX

Parent   Move   Type   Cat.   Pwr.   Acc.   PP  Aurora Beam Ice Special 65 100% 20 Bite Dark Physical 60 100% 25 Bubble Beam Water Special 65 100% 20 Haze Ice Status — —% 30 Knock Off Dark Physical 65 100% 20 Reflect Type Normal Status — —% 15 Slam Normal Physical 80 75% 20 Supersonic Normal Status — 55% 20 Tickle* Normal Status — 100% 20 Water Pulse Water Special 60 100% 20

Moves marked with an asterisk (*) must be chain bred onto Omastar in Generation VIII Moves marked with a double dagger (‡) can only be bred from a Pokémon who learned the move in an earlier generation. Moves marked with a superscript game abbreviation can only be bred onto Omastar in that game. Bold indicates a move that gets STAB when used by Omastar Italic indicates a move that gets STAB only when used by an Evolution of Omastar Click on the generation numbers at the top to see Egg moves from other generations

By tutoring

Generation VIII Other generations: II - III - IV - V - VI - VII - IX

Game   Move   Type   Cat.   Pwr.   Acc.   PP  Sw Sh EP BD SP Meteor Beam Rock Special 120 90% 10

Bold indicates a move that gets STAB when used by Omastar Italic indicates a move that gets STAB only when used by an Evolution of Omastar Click on the generation numbers at the top to see Move Tutor moves from other generations

By a prior evolution

Generation VIII Other generations: I - II - III - IV - V - VI - VII - IX

Stage   Move   Type   Cat.   Pwr.   Acc.   PP  This Pokémon has no moves exclusive to prior Evolutions.

Bold indicates a move that gets STAB when used by Omastar Italic indicates a move that gets STAB only when used by an Evolution of Omastar Click on the generation numbers at the top to see moves from other generations

TCG-only moves

Move	Card
Hydro Cannon	Omastar (EX Sandstorm 19)

Side game data

Pokémon Pinball Acquisition: Evolve			Pokémon Trozei! Rarity: Rare
Pokémon Mystery Dungeon Red Rescue Team and Blue Rescue Team Body size: 1 Recruit rate: Evolve Friend Area: Deep-Sea Floor Phrases 51%-100% HP There's no getting away from my tentacles' embrace! 26%-50% HP This doesn't look good. My health is reduced to half. 1%-25% HP Help me... I can't even wiggle my tentacles... Level up Hm! Leveled up just as I'd hoped!
Pokémon Mystery Dungeon Explorers of Time, Explorers of Darkness, and Explorers of Sky Body size: 1 Recruit rate: -4.5% IQ group: E
Pokémon Ranger: Shadows of Almia Group: Water Poké Assist: Water Field move: (Soak ×3) Browser entry R-236 It shoots bubbles from its mouth to attack.
Pokémon Rumble Attack ●●●● Defense ●●●● Speed ●●●			Pokémon Rumble Blast Attack ●●●● Defense ●●●● Speed ●●●
Pokémon Rumble Rush Walking Speed: 1.67 seconds Base HP: 53 Base Attack: 79 Base Defense: 59 Base Speed: 60
Pokémon Battle Trozei Rock Attack Power: ★★★★★			Pokémon Shuffle Water Attack Power: 60 - 105 5 #474 Rock Break+ Sometimes destroys three breakable-rock disruptions.
Pokémon GO Base HP: 172 Base Attack: 207 Base Defense: 201 Egg Distance: N/A Buddy Distance: 5 km Evolution Requirement: N/A Fast Attacks: Mud Shot*, Water Gun, Rock Throw† Charged Attacks: Ancient Power, Hydro Pump, Rock Blast*, Rock Slide†, Frustration‡, Return‡

Evolution

Unevolved Omanyte  Rock  Water

Level 40 →

First Evolution Omastar  Rock  Water

Sprites

Generation I Red Green Red Blue Yellow Front Back Front Back Front Back

Generation II Gold Silver Crystal Front Back Front Back Front Back

Generation III Ruby Sapphire Emerald FireRed LeafGreen Front Back Front Back Front Back

Generation IV Diamond Pearl Platinum HeartGold SoulSilver Front Back Front Back Front Back

Generation V Black White Black 2 White 2 Front Back Front Back

Generation VI X Y Omega Ruby Alpha Sapphire Front Back Front Back

Generation VII Sun Moon Ultra Sun Ultra Moon Front Back Front Back

For other sprites and images, please see Omastar images on the Bulbagarden Archives.

Trivia

• In early English-language promotional material for Pokémon Red and Blue, Omastar was originally known as "Kargo". This name is derived from "escargot" (French for snail).

Origin

Omastar appears to be based on a type of ammonite. In addition, its method of grabbing prey and cracking their shells with ring-shaped mouths may be based on Anomalocaris.

Name origin

Omastar's name is a combination of its Japanese name, a phonetic anagram of ammonite, and star (based on its body shape).

Omstar is a combination of オウムガイ ōmugai (nautilus) and star.

In other languages

Language Title Meaning Japanese オムスター Omstar From オウムガイ ōmugai and star French Amonistar From ammonite and star Spanish Omastar Same as English name German Amoroso From Ammonit Italian Omastar Same as English name Korean 암스타 Amseuta From Ammonite and star. 암 (岩) also means "rock", one of its types. Mandarin Chinese 多刺菊石獸 / 多刺菊石兽 Duōcìjúshíshòu Means "Spiky ammonite beast" Cantonese Chinese 多刺菊石獸 Dōchigūksehksau Means "Spiky ammonite beast"

More languages Hindi ओमास्टार Omastar Transcription of English name Russian Омастар Omastar Transcription of English name Thai ออมสตาร์ Omstar Transcription of trademarked Japanese name

Related articles

• Omny
• Fossil Pokémon

External links

← #138: Omanyte

Pokémon

#140: Kabuto →

This Pokémon article is part of Project Pokédex, a Bulbapedia project that aims to write comprehensive articles on each Pokémon species, as well as Pokémon groups and forms.