The Genetic Pokemon. S-Tier and Red & Blue's strongest by a wide margin. With no real counters in Gen 1, Mewtwo breaks every team it faces.
744HP106Attack110Defense90Speed130Sp.Def154Sp.Atk154
Weak to
Special
Sweeper
130Speed · Extreme

Is Mewtwo Good in Red & Blue Playthrough?

Only catchable in Cerulean Cave after beating the Champion. By that point there's nothing left to use it on in the story. The strongest Pokemon in Gen 1 by a wide margin, but it's a postgame trophy that would've trivialized everything if you'd had it earlier.

StrongGoodEvenToughBadSGSSSGSSSSSSSBrockGym 1MistyGym 2SurgeGym 3ErikaGym 4KogaGym 5SabrinaGym 6BlaineGym 7GiovanniGym 8LoreleiE4BrunoE4AgathaE4LanceE4BlueChamp*MewtwoCatchable
Brock
Gym 1
Strong

Mewtwo resists most of Brock's coverage and hits back hard.

Easy KO
Geodude
Lv 12
RockGround
Rock Head
TackleDefense Curl
Easy KO
Onix
Lv 14
RockGround
Rock Head
TackleScreechBide
Misty
Gym 2
Good

Mewtwo has the type edge here and should clean up Misty's team.

Easy KO
Staryu
Lv 18
Water
Illuminate
TackleWater Gun
Even
Starmie
Lv 21
WaterPsychic
Illuminate
TackleWater GunBubble Beam
Lt. Surge
Gym 3
Strong

Mewtwo resists most of Lt. Surge's coverage and hits back hard.

Easy KO
Voltorb
Lv 21
Electric
Soundproof
TackleScreechSonic Boom
Easy KO
Pikachu
Lv 18
Electric
Static
Thunder ShockGrowlThunder WaveQuick Attack
You Win
Raichu
Lv 24
Electric
Static
Thunder ShockGrowlThunderbolt
Erika
Gym 4
Strong

Mewtwo resists most of Erika's coverage and hits back hard.

Easy KO
Victreebel
Lv 29
GrassPoison
Chlorophyll
Razor LeafWrapPoison PowderSleep Powder
Easy KO
Tangela
Lv 24
Grass
Chlorophyll
ConstrictBind
Easy KO
Vileplume
Lv 29
GrassPoison
Chlorophyll
Petal DancePoison PowderMega DrainSleep Powder
Koga
Gym 5
Strong

Mewtwo resists most of Koga's coverage and hits back hard.

Easy KO
Koffing
Lv 37
Poison
Levitate
TackleSmogSludgeSmokescreen
Easy KO
Muk
Lv 39
Poison
Stench
DisablePoison GasMinimizeSludge
Easy KO
Koffing
Lv 37
Poison
Levitate
TackleSmogSludgeSmokescreen
Easy KO
Weezing
Lv 43
Poison
Levitate
SmogSludgeToxicSelf Destruct
Sabrina
Gym 6
Good

Mewtwo has the type edge here and should clean up Sabrina's team.

Even
Kadabra
Lv 38
Psychic
Synchronize
DisablePsybeamRecoverPsychic
You Win
Mr Mime
Lv 37
Psychic
Soundproof
ConfusionBarrierLight ScreenDouble Slap
Easy KO
Venomoth
Lv 38
BugPoison
Shield Dust
Poison PowderLeech LifeStun SporePsybeam
Even
Alakazam
Lv 43
Psychic
Synchronize
PsybeamRecoverPsywaveReflect
Blaine
Gym 7
Strong

Mewtwo resists most of Blaine's coverage and hits back hard.

Easy KO
Growlithe
Lv 42
Fire
Intimidate
EmberLeerTake DownAgility
Easy KO
Ponyta
Lv 40
Fire
Run Away
Tail WhipStompGrowlFire Spin
Easy KO
Rapidash
Lv 42
Fire
Run Away
Tail WhipStompGrowlFire Spin
Easy KO
Arcanine
Lv 47
Fire
Intimidate
RoarEmberFire BlastTake Down
Giovanni
Gym 8
Strong

Mewtwo resists most of Giovanni's coverage and hits back hard.

Easy KO
Rhyhorn
Lv 45
GroundRock
Lightning Rod
StompTail WhipFury AttackHorn Drill
Easy KO
Dugtrio
Lv 42
Ground
Sand Veil
GrowlDigSand AttackSlash
Easy KO
Nidoqueen
Lv 44
PoisonGround
Poison Point
ScratchTail WhipBody SlamPoison Sting
Easy KO
Nidoking
Lv 45
PoisonGround
Poison Point
TackleHorn AttackPoison StingThrash
Easy KO
Rhydon
Lv 50
GroundRock
Lightning Rod
StompTail WhipFissureHorn Drill
Lorelei
Elite Four
Strong

Mewtwo resists most of Lorelei's coverage and hits back hard.

Easy KO
Dewgong
Lv 54
WaterIce
Thick Fat
GrowlAurora BeamRestTake Down
Easy KO
Cloyster
Lv 53
WaterIce
Shell Armor
SupersonicClampAurora BeamSpike Cannon
You Win
Slowbro
Lv 54
WaterPsychic
Oblivious
GrowlWater GunWithdrawAmnesia
You Win
Jynx
Lv 56
IcePsychic
Oblivious
Double SlapIce PunchBody SlamThrash
Easy KO
Lapras
Lv 56
WaterIce
Water Absorb
Body SlamConfuse RayBlizzardHydro Pump
Bruno
Elite Four
Strong

Mewtwo resists most of Bruno's coverage and hits back hard.

Easy KO
Onix
Lv 53
RockGround
Rock Head
Rock ThrowRageSlamHarden
Easy KO
Hitmonchan
Lv 55
Fighting
Keen Eye
Ice PunchThunder PunchMega PunchCounter
Easy KO
Hitmonlee
Lv 55
Fighting
Limber
Jump KickFocus EnergyHigh Jump KickMega Kick
Easy KO
Onix
Lv 56
RockGround
Rock Head
Rock ThrowRageSlamHarden
Easy KO
Machamp
Lv 58
Fighting
Guts
LeerFocus EnergyFissureSubmission
Agatha
Elite Four
Strong

Mewtwo resists most of Agatha's coverage and hits back hard.

Easy KO
Gengar
Lv 56
GhostPoison
Cursed Body
Confuse RayNight ShadeHypnosisDream Eater
Easy KO
Golbat
Lv 56
PoisonFlying
Inner Focus
SupersonicConfuse RayWing AttackHaze
Easy KO
Haunter
Lv 55
GhostPoison
Levitate
Confuse RayNight ShadeHypnosisDream Eater
Easy KO
Arbok
Lv 58
Poison
Intimidate
BiteGlareScreechAcid
Easy KO
Gengar
Lv 60
GhostPoison
Cursed Body
Confuse RayNight ShadeToxicDream Eater
Lance
Elite Four
Strong

Mewtwo resists most of Lance's coverage and hits back hard.

Easy KO
Gyarados
Lv 58
WaterFlying
Intimidate
Dragon RageLeerHydro PumpHyper Beam
Easy KO
Dragonair
Lv 56
Dragon
Shed Skin
AgilitySlamDragon RageHyper Beam
Easy KO
Dragonair
Lv 56
Dragon
Shed Skin
AgilitySlamDragon RageHyper Beam
You Win
Aerodactyl
Lv 60
RockFlying
Rock Head
SupersonicBiteTake DownHyper Beam
Easy KO
Dragonite
Lv 62
DragonFlying
Inner Focus
AgilitySlamBarrierHyper Beam
Blue
Champion
Strong

Mewtwo resists most of Blue's coverage and hits back hard.

Easy KO
Pidgeot
Lv 61
NormalFlying
Keen Eye
WhirlwindWing AttackSky AttackMirror Move
Even
Alakazam
Lv 59
Psychic
Synchronize
PsybeamRecoverPsychicReflect
Easy KO
Rhydon
Lv 61
GroundRock
Lightning Rod
Tail WhipFury AttackHorn DrillLeer
Easy KO
Arcanine
Lv 61
Fire
Intimidate
RoarEmberLeerTake Down
You Win
Exeggutor
Lv 63
GrassPsychic
Chlorophyll
BarrageHypnosisStomp
Easy KO
Blastoise
Lv 65
Water
Torrent
BiteWithdrawBlizzardHydro Pump

Catchable

Post-game only
Type
Psychic
Tier
S

Catch Mewtwo in Cerulean Cave (interact, Lv 70, limited). Defeat Elite Four. Cerulean Cave opens after entering the Hall of Fame. Navigate to B1F where Mewtwo waits at Level 70.

View Mewtwo locations

How to Get Mewtwo in Red & Blue

Mewtwo waits in Cerulean Cave, which only opens after you beat the Elite Four. It is a one-time level 70 encounter with a catch rate of 3, the hardest legitimate catch in the game.

1 location to catch Mewtwo

Badge 8
Post-Game

Mewtwo Weakness

Type-wise, Mewtwo takes extra damage from Bug. Ghost moves do nothing thanks to a full immunity. Mewtwo's special bulk (base 154 Special) helps absorb special-type weaknesses, though physical moves exploit the lower Defense.

Mewtwo Weakness and Resistance Chart
DamageTypes
2x (Weak)Bug
0.5x (Resist)Fighting, Psychic
0x (Immune)Ghost
Gen I Type Chart
  • Only 15 types exist — Dark, Steel, and Fairy are absent
  • Ghost has no effect on Psychic (a known bug, fixed in Gen II)
  • Special stat governs both offense and defense — no Sp.Atk / Sp.Def split

What is Mewtwo Weak Against

Good
1Weak
2Resist
1Immune
Score+3
4xCritical
None
2xWeak
¼xResist
None
0xImmune

What is Mewtwo Strong Against

2Strong
1Resisted
0Immune
Score+1
½xResisted
0xImmune
None

Best Pokemon Against Mewtwo

Parasect
Parasect
BugGrass
C
Beedrill
Beedrill
BugPoison
C
Venomoth
Venomoth
BugPoison
C

Mewtwo Evolutions

No breeding, no evolution. Mewtwo is a Psychic legendary with 744 base stat total that you obtain once and build around. View every chain in the Evolution Chart.

How to Evolve

No Evolution
Mewtwo
#150Mewtwo
Does not evolve
Breeding not available · Introduced in Gen 2

RB Mewtwo Best Moveset

154 Special and 130 Speed on a Psychic-type where nothing resists the type. MovePsychic for TermStab, MoveBlizzard and MoveThunderbolt for coverage that hits everything without being resisted, and MoveRecover to stay healthy. The strongest Pokemon available by a margin nothing else approaches.

Best Build

Experimental
Utility
Ability
Unknown
Item
None
Best Nature for Mewtwo
HardyNEUTRAL

Utility Moveset

  • AmnesiaUtility
  • PsychicSTAB
  • RecoverRecovery
  • Ice Beam

Moves List

TMs define Mewtwo's movepool. The natural moves cover basics with Psychic and Confusion, but the real versatility comes from technical machines giving it coverage across 7 types. That's where the options open up.

Level-Up Moves

Lv 1
Confusion
—7510025Psychic
Lv 1
Disable
D—5520Normal
Lv 1
Psychic
B13510010Psychic
Lv 1
Swift
C60—20Normal
Lv 63
Barrier
D——30Psychic
Lv 66
Psychic
B13510010Psychic
Lv 70
Recover
B——20Normal
Lv 75
Mist
———30Ice
Lv 81
Amnesia
B——20Psychic

TM Moves

All 36 TMs are obtainable before the Elite Four

TM
TM34D——10Normal
TM14
BlizzardPokémon Mansionbadge 6
A110905Ice
TM08
Body SlamS.S. Annebadge 2
C8510015Normal
TM11C6510020Water
TM18
Counter-5Celadon Department Storebadge 3
D—10020Fighting
TM32
Double TeamSafari Zonebadge 3
———15Normal
TM10
Double-EdgeRocket Hideoutbadge 3
B12010015Normal
TM38B120855Fire
HM05D—7020Normal
TM15
Hyper BeamRocket Game Cornerbadge 3
B150905Normal
TM13A9510010Ice
TM05
Mega KickCeladon Department Storebadge 3
C120755Normal
TM01
Mega PunchMt. Moonbadge 1
C808520Normal
TM35
MetronomePokémon Labbadge 6
D——10Normal
TM31
MimicSaffron Citybadge 5
D——10Normal
TM16
Pay DayRoute 12badge 5
D4010020Normal
TM29
PsychicSaffron Citybadge 5
B13510010Psychic
TM46——10015Psychic
TM20
RageRoute 15badge 3
D2010020Normal
TM33
ReflectKanto Power Plantbadge 3
C——20Psychic
TM44
RestS.S. Annebadge 2
C——10Psychic
TM19
Seismic TossRoute 25badge 1
D—10020Fighting
TM36
Self-DestructSilph Co.badge 5
B2001005Normal
TM40
Skull BashSafari Zonebadge 4
B10010010Normal
TM22
Solar BeamPokémon Mansionbadge 6
B12010010Grass
HM04
StrengthFuchsia Citybadge 4
—8010015Normal
TM17
SubmissionCeladon Department Storebadge 3
C808025Fighting
TM50
SubstituteRocket Game Cornerbadge 3
C——10Normal
TM09
Take DownSilph Co.badge 3
C908520Normal
TM30
Teleport-6Route 9badge 2
———20Psychic
TM25
ThunderKanto Power Plantbadge 5
C1107010Electric
TM45
Thunder WaveRoute 24badge 1
C—10020Electric
TM24A9510015Electric
TM06C—9010Poison
TM49B8010010Normal
TM12
Water GunMt. Moonbadge 1
C4010025Water

Tutor Moves

Mewtwo can't learn any Tutor moves

Base Stats

Base Stats
Legend
HP106
B
Attack110
B
Defense90
B
Sp. Atk154
S
Sp. Def154
S
Speed130
A
Total744
Details
Catch Rate
Legendary3 / 255
Growth Rate
Slow1.25M XP
Height2.0 m
Weight122.0 kg
Base XP340
EV Yield
HPAtkDefSpA+3SpDSpe
Strong Special Attack training target
Pokedex Entry

It was created by a scientist after years of horrific gene splicing and DNA engineering experiments.

Pokemon Red / Pokemon Blue

Mewtwo Red & Blue Guide

  • Mega Evolution isn't available in Red & Blue, but Mewtwo does have a Mega form in Gen 6-7 games (X/Y, ORAS, Sun/Moon). Mega Mewtwo hits 844 BST.

  • Mewtwo is a static encounter at Cerulean Cave in Red & Blue. Mewtwo appears at level 70. Prerequisite: Defeat Elite Four. Save before the encounter. These one-shot Pokemon don't respawn if you knock them out or run out of Poke Balls.

  • Yes. Mewtwo is not available during the main story. It can only be obtained after entering the Hall of Fame. Mewtwo becomes available after the main story is complete in Red & Blue.

  • In Red & Blue, Mewtwo plays as a sweeper. It outspeeds most threats, so it can pressure opponents before they move. Psychic is the primary attack.

Game Availability

Mewtwo has appeared in 21 games since Red & Blue, spanning 9 generations. As a Legendary, it's typically a one-per-save encounter tied to the story or post-game content.

Explore

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