#0150 · Kanto · Generation 1 · legendary

Mewtwo

Genetic Pokémon · Psychic-type

Mewtwo is a Psychic-type Pokémon, the Genetic Pokémon, number 150 (#0150) in the National Pokédex. It was introduced in Generation 1 and comes from the Kanto region. It is 2 m tall and weighs 122 kg.

Mewtwo is the Genetic Pokémon, a Psychic-type Legendary built in a laboratory from Mew's DNA to be the strongest battler alive. Its escape from that lab is one of the most famous origin stories in Pokémon.

How to pronounce Mewtwo

Mewtwo is pronounced MYOO-too. The capital letters show the stressed syllable.

Listen to Mewtwo said out loud:

In Japanese it is ミュウツー.

Hear every other name on the Pokémon pronunciation guide.

Lore

Biology

Mewtwo is a tall humanoid with grey skin, a long purple tail, a purple belly, two short horns and a hint of cat about its face. A tube runs from the back of its skull down to its spine. It is 2.0 m tall and weighs 122 kg. Journals in Kanto's Pokémon Mansion say a scientist created it by modifying a clone of Mew, and the Pokédex says years of gene splicing gave it enormous power and a cold, savage nature. It broke free and destroyed the laboratory on its way out.

Behaviour

The Pokédex says Mewtwo has the most savage heart of any Pokémon. It stays motionless to save energy for battle and, having been made to fight, thinks only of winning. It is rarely seen and is said to rest in a cave nobody has found. In the film 'Mewtwo Strikes Back' it begins full of fury, but by the end it is shown to be caring and protective.

Habitat

In the first games a single Mewtwo waits at the bottom of Cerulean Cave. The Pokédex habitat list simply calls it rare.

Powers

Mewtwo's mind is its weapon: Psychic, Aura Sphere, Recover and Future Sight, plus Psystrike, which only Mewtwo learns. In the anime it levitates, reads and controls minds, erases memories and whips up world-wrecking storms. It can Mega Evolve into Mega Mewtwo X (Psychic and Fighting, built for physical attacks) or Mega Mewtwo Y (pure Psychic, with even more special power). With 154 base Special Attack and 130 base Speed it is a blisteringly fast special attacker.

Name origin

Mewtwo combines 'Mew', the Pokémon it was cloned from, with 'two', and may also hint at 'mutant'. The Japanese name Mewtwo (ミュウツー) is built the same way.

Design inspiration

Ken Sugimori designed Mewtwo. Like Mew it mixes cat and embryo, scaled up and given a touch of grey alien and salamander, and the tail looks like an umbilical cord. Tomohiro Kitakaze designed Mega Mewtwo Y.

In the games

Mewtwo is the hidden final challenge after the Pokémon League, first met in Red and Green (Red and Blue outside Japan). In the Episode RR story of Ultra Sun and Ultra Moon, Giovanni uses one, and it Mega Evolves into X or Y depending on the version. In Legends: Z-A one appears at Lysandre Labs once a Mystery Gift is activated; in Scarlet and Violet it arrives via Pokémon HOME or an event.

In the anime

Its big role is in 'Mewtwo Strikes Back', the first Pokémon film, and the sequel 'Mewtwo Returns'. A different Mewtwo Mega Evolves in 'Genesect and the Legend Awakened', and in 'Getting More Than You Battled For!' one accepts a challenge from Ash and Goh and beats them easily.

Fun facts

• Mewtwo comes before Mew in the National Pokédex even though it was cloned from Mew.
• A Pokémon Mansion journal gives Mewtwo's birthday: 6 February.
• At 780, Mega Mewtwo X and Y share the highest base stat total of any usable Pokémon, level with Mega Rayquaza.
• Mega Mewtwo Y weighs 89 kg less than ordinary Mewtwo, the biggest weight drop of any Mega Evolution.
• The very first Pokémon that English-speaking viewers ever saw in the anime was Mewtwo, at the start of the dub's opening.

Sources: Bulbapedia: Mewtwo (Pokémon) · Serebii: Mewtwo (Scarlet/Violet Pokédex)

Base stats

• HP: 106
• Attack: 110
• Defense: 90
• Sp. Atk: 154
• Sp. Def: 90
• Speed: 130

Mewtwo’s base stat total is 680. Its highest stat is Sp. Atk.

Type matchups

What is Mewtwo weak to?

Mewtwo takes extra damage from Bug (2×), Ghost (2×), Dark (2×) moves.

It resists Fighting (½×), Psychic (½×).

Evolution

Mewtwo does not evolve, and it does not evolve from any other Pokémon.

Forms

• Mega Mewtwo X (Mega): Psychic/Fighting-type, base stat total 780 (HP 106, Attack 190, Defense 100, Sp. Atk 154, Sp. Def 100, Speed 130). Ability: Steadfast.
• Mega Mewtwo Y (Mega): Psychic-type, base stat total 780 (HP 106, Attack 150, Defense 70, Sp. Atk 194, Sp. Def 120, Speed 140). Ability: Insomnia.

Abilities

• Pressure: Increases the PP cost of moves targetting the Pokémon by one.
• Unnerve (hidden ability): Prevents opposing Pokémon from eating held Berries.

Moves

Moves Mewtwo learns by level up in Scarlet / Violet

TM moves (91)

Mewtwo can learn 91 moves from TMs in Scarlet / Violet: Take Down, Agility, Scary Face, Protect, Low Kick, Psybeam, Confuse Ray, Trailblaze, Chilling Water, Facade, Bulldoze, Hex, Swift, Icy Wind, Rock Tomb, Low Sweep, Stored Power, Night Shade, Fling, Avalanche, Endure, Sunny Day, Rain Dance, Sandstorm, Psyshock, Brick Break, Zen Headbutt, Foul Play, Bulk Up, Body Slam, Fire Punch, Thunder Punch, Ice Punch, Sleep Talk, Electro Ball, Drain Punch, Reflect, Light Screen, Metronome, Grass Knot, Thunder Wave, Poison Jab, Stomping Tantrum, Rest, Rock Slide, Taunt, Imprison, Dark Pulse, Skill Swap, Power Gem, Substitute, Will-O-Wisp, Trick, Aura Sphere, Shadow Ball, Energy Ball, Psychic, Flamethrower, Thunderbolt, Amnesia, Calm Mind, Helping Hand, Earth Power, Reversal, Ice Beam, Psychic Terrain, Nasty Plot, Fire Blast, Blizzard, Earthquake, Stone Edge, Giga Impact, Focus Blast, Hurricane, Trick Room, Hyper Beam, Thunder, Solar Beam, Tera Blast, Spite, Gravity, Knock Off, Focus Punch, Weather Ball, Lash Out, Psych Up, Double-Edge, Future Sight, Expanding Force, Curse, Psychic Noise.

Breeding & training

• Gender: genderless.
• Egg groups: Undiscovered.
• Egg cycles: 120 (steps to hatch, Scarlet/Violet: 15,360).
• Catch rate: 3 out of 255.
• Base friendship (Gen 8 onward): 0.
• Growth rate: Slow (1,250,000 experience points to reach level 100).
• Defeating it gives 3 Sp. Atk effort values.
• Base experience yield: 306.

Pokédex entries

Its DNA is almost the same as Mew's. However, its size and disposition are vastly different. (Yellow, Let’s Go, Pikachu!, Let’s Go, Eevee!)

Mewtwo is a Pokémon that was created by genetic manipulation. However, even though the scientific power of humans created this Pokémon's body, they failed to endow Mewtwo with a compassionate heart. (Ruby, Sapphire, Omega Ruby, Alpha Sapphire)

A Pokémon created by recombining Mew's genes. It's said to have the most savage heart among Pokémon. (Diamond, Pearl, Platinum, Black, White, Black 2, White 2, Y)

It was created by a scientist after years of horrific gene splicing and DNA engineering experiments. (Red, Blue, LeafGreen, X)

It usually remains motionless to conserve energy, so that it may unleash its full power in battle. (Silver, SoulSilver)

Because its battle abilities were raised to the ultimate level, it thinks only of defeating its foes. (Gold, HeartGold)

Names around the world

Trivia

• Highest Sp. Atk among Psychic types: 154.
• Highest Sp. Atk among Gen 1 Pokémon: 154.
• Highest base stat total among Gen 1 Pokémon: 680.
• Heaviest Psychic type in Gen 1: 122 kg.
• Tallest Psychic type in Gen 1: 2 m, shared with 1 other.
• Fastest Psychic type in Gen 1: 130 Speed.
• Highest HP among Psychic types in Gen 1: 106.
• Highest Attack among Psychic types in Gen 1: 110.
• Highest Sp. Atk among Psychic types in Gen 1: 154.
• Highest base stat total among Psychic types in Gen 1: 680.
• Taller than 87% of all Pokémon (2 m).
• Heavier than 87% of all Pokémon (122 kg).
• Base stat total 680, ranked #3 of 1,025.
• Its best stat is Sp. Atk, ranked #2 of 1,025.
• One of 102 Psychic-type Pokémon (counting dual types).
• One of 87 purple Pokémon.
• Number 150 of 151 Pokémon introduced in Generation 1 (Kanto).
• Can learn 102 different moves in Scarlet / Violet.
• Catch rate 3: about 0.4% per Poké Ball at full health.
• Has 2 alternate forms.
• Appears in 9 distinct Pokédex entries.

Sources and fact-checking

• Stats, types, abilities, moves, evolutions, forms and Pokédex entries: PokéAPI open game data.
• Lore: written by pokee.si in our own words, researched from Bulbapedia: Mewtwo (Pokémon), Serebii: Mewtwo (Scarlet/Violet Pokédex).
• Pronunciation (MYOO-too): it follows how the English anime, games or official videos say it.

Last checked: 19 October 2026. Every sentence of the lore was checked against Bulbapedia, Serebii and the game data.

Explore

Psychic-type Pokémon · Mewtwo vs Mew · Mewtwo vs Rayquaza · Mewtwo vs Arceus · Mewtwo vs Zacian · Mewtwo vs Charizard · Mewtwo vs Deoxys · Kanto region guide · Pressure ability · Unnerve ability · Compare Mewtwo · Full Pokédex · Type chart · All moves

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Gen 1 Psychic-type Pokémon · Gen 1 Pokémon list · Purple Pokémon list · No Eggs Discovered egg group · Pokémon that start with M · Cat Pokémon

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