Physical
Balanced
60Speed · Below Avg

Is Weezing Good in FireRed & LeafGreen Playthrough?

Ground attacks pass right through Weezing now. AbilityLevitate adds an immunity the original Kanto version never had. Poison with only Psychic as a weakness. Handles Erika and contributes through the mid-game with solid Defense. Koga runs Weezing on his team. A more resilient option in the remake.

StrongGoodEvenToughBadEEEGEEETGEEEEBrockGym 1MistyGym 2SurgeGym 3KoffingCatchableErikaGym 4WeezingEvolveKogaGym 5SabrinaGym 6BlaineGym 7GiovanniGym 8LoreleiE4BrunoE4AgathaE4LanceE4TerryChamp*
Brock
Gym 1
Even

Koffing trades roughly evenly with Brock's team.

Even
Geodude
Lv 12
RockGround
Rock Head
TackleDefense Curl
Even
Onix
Lv 14
RockGround
Rock Head
TackleBindRock Tomb
Misty
Gym 2
Even

Koffing trades roughly evenly with Misty's team.

Even
Staryu
Lv 18
Water
Illuminate
TackleHardenRecoverWater Pulse
Even
Starmie
Lv 21
WaterPsychic
Illuminate
SwiftRecoverRapid SpinWater Pulse
Lt. Surge
Gym 3
Even

Koffing trades roughly evenly with Lt. Surge's team.

You Win
Voltorb
Lv 21
Electric
Soundproof
Sonic BoomTackleScreechShock Wave
You Win
Pikachu
Lv 18
Electric
Static
Quick AttackThunder WaveDouble TeamShock Wave
Even
Raichu
Lv 24
Electric
Static
Quick AttackThunder WaveDouble TeamShock Wave
Erika
Gym 4
Good

Koffing has the type edge here and should clean up Erika's team.

Even
Victreebel
Lv 29
GrassPoison
Chlorophyll
Stun SporeAcidPoison PowderGiga Drain
You Win
Tangela
Lv 24
Grass
Chlorophyll
Poison PowderConstrictIngrainGiga Drain
Even
Vileplume
Lv 29
GrassPoison
Chlorophyll
Sleep PowderAcidStun SporeGiga Drain
Koga
Gym 5
Even

Weezing trades roughly evenly with Koga's team.

You Win
Koffing
Lv 37
Poison
Levitate
Self DestructSludgeSmokescreenToxic
Even
Muk
Lv 39
Poison
Stench
MinimizeSludgeAcid ArmorToxic
You Win
Koffing
Lv 37
Poison
Levitate
Self DestructSludgeSmokescreenToxic
Even
Weezing
Lv 43
Poison
Levitate
TackleSludgeSmokescreenToxic
Sabrina
Gym 6
Even

Weezing trades roughly evenly with Sabrina's team.

Even
Kadabra
Lv 38
Psychic
Synchronize
PsybeamReflectFuture SightCalm Mind
Even
Mr Mime
Lv 37
PsychicFairy
Soundproof
BarrierPsybeamBaton PassCalm Mind
Even
Venomoth
Lv 38
BugPoison
Shield Dust
PsybeamGustLeech LifeSupersonic
Risky
Alakazam
Lv 43
Psychic
Synchronize
PsychicRecoverFuture SightCalm Mind
Blaine
Gym 7
Even

Weezing trades roughly evenly with Blaine's team.

You Win
Growlithe
Lv 42
Fire
Intimidate
BiteRoarTake DownFire Blast
You Win
Ponyta
Lv 40
Fire
Run Away
StompBounceFire SpinFire Blast
Even
Rapidash
Lv 42
Fire
Run Away
StompBounceFire SpinFire Blast
Even
Arcanine
Lv 47
Fire
Intimidate
BiteRoarTake DownFire Blast
Giovanni
Gym 8
Tough

Giovanni's team hits Weezing's weaknesses hard.

Even
Rhyhorn
Lv 45
GroundRock
Lightning Rod
Take DownRock BlastScary FaceEarthquake
Risky
Dugtrio
Lv 42
Ground
Sand Veil
SlashSand TombMud SlapEarthquake
Even
Nidoqueen
Lv 44
PoisonGround
Poison Point
Body SlamDouble KickPoison StingEarthquake
Risky
Nidoking
Lv 45
PoisonGround
Poison Point
ThrashDouble KickPoison StingEarthquake
Even
Rhyhorn
Lv 50
GroundRock
Lightning Rod
Take DownRock BlastScary FaceEarthquake
Lorelei
Elite Four
Good

Weezing has the type edge here and should clean up Lorelei's team.

You Win
Dewgong
Lv 52
WaterIce
Thick Fat
Ice BeamSurfHailSafeguard
You Win
Cloyster
Lv 51
WaterIce
Shell Armor
SpikesProtectHailDive
You Win
Slowbro
Lv 52
WaterPsychic
Oblivious
Ice BeamSurfAmnesiaYawn
Even
Jynx
Lv 54
IcePsychic
Oblivious
Ice PunchDouble SlapLovely KissAttract
Even
Lapras
Lv 54
WaterIce
Water Absorb
Confuse RayIce BeamSurfBody Slam
Bruno
Elite Four
Even

Weezing trades roughly evenly with Bruno's team.

Even
Onix
Lv 51
RockGround
Rock Head
EarthquakeRock TombIron TailRoar
You Win
Hitmonchan
Lv 53
Fighting
Keen Eye
Sky UppercutMach PunchRock TombCounter
Even
Hitmonlee
Lv 53
Fighting
Limber
Mega KickForesightBrick BreakFacade
Risky
Onix
Lv 54
RockGround
Rock Head
Double EdgeEarthquakeIron TailSand Tomb
You Win
Machamp
Lv 56
Fighting
Guts
Cross ChopBulk UpScary FaceRock Tomb
Agatha
Elite Four
Even

Weezing trades roughly evenly with Agatha's team.

Even
Gengar
Lv 54
GhostPoison
Levitate
Shadow PunchConfuse RayToxicDouble Team
Even
Golbat
Lv 54
PoisonFlying
Inner Focus
Confuse RayPoison FangAir CutterBite
Risky
Haunter
Lv 53
GhostPoison
Levitate
HypnosisDream EaterCurseMean Look
Even
Arbok
Lv 56
Poison
Intimidate
Sludge BombScreechIron TailBite
Risky
Gengar
Lv 58
GhostPoison
Levitate
Shadow BallSludge BombHypnosisNightmare
Lance
Elite Four
Even

Weezing trades roughly evenly with Lance's team.

You Win
Gyarados
Lv 56
WaterFlying
Intimidate
Hyper BeamDragon RageTwisterBite
You Win
Dragonair
Lv 54
Dragon
Shed Skin
Hyper BeamSafeguardDragon RageOutrage
Even
Dragonair
Lv 54
Dragon
Shed Skin
Hyper BeamSafeguardThunder WaveOutrage
Risky
Aerodactyl
Lv 58
RockFlying
Rock Head
Hyper BeamAncient PowerWing AttackScary Face
Risky
Dragonite
Lv 60
DragonFlying
Inner Focus
Hyper BeamSafeguardOutrageWing Attack
Terry
Champion
Even

Weezing trades roughly evenly with Terry's team.

Even
Heracross
Lv 72
BugFighting
Swarm
MegahornEarthquakeCounterRock Tomb
Even
Alakazam
Lv 73
Psychic
Synchronize
PsychicShadow BallCalm MindReflect
Risky
Tyranitar
Lv 72
RockDark
Sand Stream
CrunchEarthquakeThunderboltAerial Ace
Even
Arcanine
Lv 73
Fire
Intimidate
Extreme SpeedOverheatAerial AceIron Tail
You Win
Exeggutor
Lv 73
GrassPsychic
Chlorophyll
Giga DrainPsychicSleep PowderLight Screen
Even
Blastoise
Lv 75
Water
Torrent
Hydro PumpIce BeamEarthquakeRain Dance
Catch Koffing
Available after Badge 3
Type
Poison
Tier
E

Catch Koffing on Celadon City (Surf, Lv 30-40, rare).

View Koffing locations

Recommended Moves
  • STARTING (Lv 30)
    • LV 30PoisonSludge98100%20
    • LV 30NormalSelf-Destruct200100%5
  • After Erika
    • TM36PoisonSludge Bomb135100%10
    • TM35FireFlamethrower90100%15
    • TM24ElectricThunderbolt90100%15
    • TM30GhostShadow Ball80100%15
    • LV 41NormalExplosion250100%5
  • After Blaine
    • TM38FireFire Blast11085%5
  • Post-Game
    • TM42NormalFacade70100%20
Evolve Koffing to Weezing
Level 35
Type
Poison
Tier
A

Your Koffing should hit Level 35 before you reach Koga, at typical leveling pace.

View Weezing locations

Recommended Moves
  • STARTING (Lv 35)
    • LV 35PoisonSludge98100%20
    • LV 35NormalSelf-Destruct200100%5
  • After Erika
    • TM36PoisonSludge Bomb135100%10
    • TM15NormalHyper Beam15090%5
    • TM35FireFlamethrower90100%15
    • TM24ElectricThunderbolt90100%15
    • LV 44NormalExplosion250100%5
  • After Blaine
    • TM38FireFire Blast11085%5
  • Post-Game
    • TM42NormalFacade70100%20

How to Get Weezing in FireRed & LeafGreen

FireRed exclusive with just two rare encounters inside the Pokemon Mansion. Weezing barely exists in the wild.

FireRed Exclusive — Not obtainable in LeafGreen

1 location to catch Weezing

Encountered via tall grass encounters

Badge 7

Weezing Weakness

Type-wise, Weezing takes extra damage from Ground and Psychic. The Poison typing picks up 4 resistances to work with. Levitate grants an additional Ground immunity, reshaping the matchup chart. Weezing's physical bulk (base 120 Def) helps cushion physical weakness hits, but special attackers are the bigger threat.

Weezing Weakness and Resistance Chart
DamageTypes
2x (Weak)Ground, Psychic
0.5x (Resist)Grass, Fighting, Poison, Bug
Gen III Type Chart
  • Dark and Steel types added — Fairy does not exist yet
  • Moves are Physical or Special based on type, not per move

What is Weezing Weak Against

Avg
2Weak
4Resist
1Immune
Score0
4xCritical
None
¼xResist
None
0xImmune

What is Weezing Strong Against

1Strong
4Resisted
1Immune
Score-4
2xStrong
0xImmune

Best Pokemon Against Weezing

Weezing Evolutions

Weezing is what Koffing becomes. Breed it for Koffing eggs (average hatch time). A decent partner pool for breeding via one egg group. Eggs are average hatch time. The evolution from Koffing pushed Weezing to 490 total stats. HP saw the largest single gain at +25. View every chain in the Evolution Chart.

How to Evolve

2 Forms
Stat Comparison 2 Stages
Koffing
Poison
Weezing
Poison
HP
40
65+25
ATK
65
90+25
DEF
95
120+25
SP.ATK
60
85+25
SP.DEF
45
70+25
SPE
35
60+25
BST
340D-Tier
490C-Tier+150
ROLE
Balanced
Balanced
TYPE
Utility
Mixed

Breeding

Very Easy

Breed with Weezing to get Koffing eggs easily using 22 partners from the Indeterminate egg group. Notable egg moves include Destiny Bond, Pain Split, Psybeam and 3 more.

Egg Groups
Gender
50.0%50.0%
Hatch Time
20 cycles·5,140 steps
Quick~5 min with Flame Body
Egg Moves
6moves
Breed With (best first)
gardevoirkirliacastformraltsmukgengarswalotmagcargohaunterwobbuffetkoffinggrimer

FRLG Weezing Best Moveset

120 Defense blocks physical attacks, and AbilityLevitate removes the Ground weakness that normally threatens Poison types. MoveSludge Bomb for physical Poison TermStab at 90 Attack, MoveWill-O-Wisp to burn physical attackers, and MovePain Split for pseudo-recovery. The moveset functions as a physical tank that floats above Ground moves.

Best Build

Experimental
Wall
Ability
Levitate
Item
LeftoversSUSTAIN
Best Nature for Weezing
Impish+DEF

Weezing best EVs are HP and Defense

EVs

Wall Moveset

  • Will O Wisp
  • Sludge BombSTAB
  • Pain Split
  • ExplosionCoverage

Recommended Teammates

Moves List

Breeding's the move. Destiny Bond and Pain Split give Weezing options it can't learn any other way, and Normal and Fire coverage and more already covers a decent range on top of Sludge Bomb and Sludge. The egg moves push it further.

Level-Up Moves

Lv 1
Poison Gas
5540Poison
Lv 1
Self-Destruct
B2001005Normal
Lv 1
Smog
307020Poison
Lv 1
Tackle
D3510035Normal
Lv 9
Smog
307020Poison
Lv 17
Self-Destruct
B2001005Normal
Lv 21
Sludge
9710020Poison
Lv 25
Smokescreen
10020Normal
Lv 33
Haze
A30Ice
Lv 44
Explosion
B2501005Normal
Lv 51
Destiny Bond
C5Ghost
Lv 58
Memento
D10010Dark

TM Moves

TM
TM45
Attract
10015Normal
TM32
Double Team
15Normal
TM42
Facade
C7010020Normal
TM38
Fire Blast
C120855Fire
TM35
Flamethrower
A9510015Fire
HM05
Flash
7020Normal
TM21
Frustration
D10020Normal
TM10
Hidden Power
6010015Normal
TM15
Hyper Beam
C150905Normal
TM17
Protect+4
C10Normal
TM18
Rain Dance
C5Water
TM44
Rest
C10Psychic
TM27
Return
D10020Normal
TM43
Secret Power
7010020Normal
TM30
Shadow Ball
C8010015Ghost
TM34
Shock Wave
D6020Electric
TM36
Sludge Bomb
B13510010Poison
TM11
Sunny Day
C5Fire
TM12
Taunt
C10020Dark
TM46
Thief
D6010025Dark
TM25
Thunder
C1207010Electric
TM24
Thunderbolt
C9510015Electric
TM41
Torment
D10015Dark
TM06
Toxic
C8510Poison

Egg Moves

Egg
Egg
Destiny Bond
C5Ghost
Egg
Pain Split
B20Normal
Egg
Psybeam
6510020Psychic
Egg
Psywave
8015Psychic
Egg
Screech
D8540Normal
Egg
Will-O-Wisp
B7515Fire

Tutor Moves

Tut
Tutor
Explosion
B2501005Normal
Tutor
Mimic
D10Normal
Tutor
Substitute
C10Normal

Base Stats

Base Stats
Above
HP65
C
Attack90
B
Defense120
A
Sp. Atk85
C
Sp. Def70
C
Speed60
C
Total490
Details
Catch Rate
Challenging60 / 255
Growth Rate
Medium Fast1M XP
Height1.2 m
Weight9.5 kg
Base XP172
Abilities
Levitate
Evades ground moves.
Neutralizing Gas
Neutralizes abilities of all Pokémon in battle.
Levitate grants Ground immunity
EV Yield
HPAtkDef+2SpASpDSpe
Defense training target
Pokedex Entry

Very rarely, a sudden mutation can result in two small KOFFING twins becoming conjoined as a WEEZING.

Where two kinds of poison gases meet, two KOFFING can fuse into a WEEZING over many years.

Weezing FireRed & LeafGreen Guide

  • Is Weezing exclusive to FireRed or LeafGreen?

    Weezing is exclusive to Pokemon FireRed. LeafGreen players have to trade for one.

    Pokemon FireRed cover art

    FireRed exclusive

    Trade with a player who has Pokemon FireRed to obtain Weezing.

    See the Locations section above for where to find Weezing in FireRed.

    How to trade in FireRed and LeafGreen

    GBA cartridges: You need a Game Boy Advance Game Link Cable and both players' FireRed/LeafGreen cartridges. Trade at the Cable Club on the 2nd floor of any Pokemon Center, which opens up shortly after Oak gives you the Pokedex.
    Nintendo Switch (2026 release): Trading uses local wireless only. There is no online play, and no Nintendo Switch Online subscription is required. Both players head to the Pokemon Wireless Club on the 2nd floor of any Pokemon Center, then step into a Union Room. Up to four other players can join. Available once you have the Pokedex from Professor Oak.

Game Availability

Available since Red & Blue, Weezing appears in 20 games spanning 10 generations. Beyond its original form, it gained a Galarian form in Generation 8.

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