
Is Koffing Good in FireRed & LeafGreen Playthrough?
Ground immunity is new for Koffing in the remake. AbilityLevitate removes one of Poison's two weaknesses, leaving only Psychic. Weezing at 35 gets better stats with the same immunity. Handles Erika through Poison. Koga uses both Koffing and Weezing on his gym team.
Koffing trades roughly evenly with Brock's team.
Koffing trades roughly evenly with Misty's team.
Koffing trades roughly evenly with Lt. Surge's team.
Koffing trades roughly evenly with Erika's team.
Koffing trades roughly evenly with Koga's team.
Sabrina's team hits Koffing's weaknesses hard.
Weezing trades roughly evenly with Blaine's team.
Giovanni's team hits Weezing's weaknesses hard.
Weezing has the type edge here and should clean up Lorelei's team.
Weezing trades roughly evenly with Bruno's team.
Weezing trades roughly evenly with Agatha's team.
Weezing trades roughly evenly with Lance's team.
Weezing trades roughly evenly with Terry's team.
Catch Koffing on Pokémon Mansion (walking, Lv 28-30, common).
- STARTING (Lv 28)
- LV 28PoisonSludge98100%20
- LV 28NormalSelf-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
Your Koffing should hit Level 35 before you reach Blaine, at typical leveling pace.
- 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 Koffing in FireRed & LeafGreen
Koffing has six encounters in both versions through walking and surfing, clustered around the Pokemon Mansion area. Common at a couple of spots, rare elsewhere.
2 locations to catch Koffing
Encountered via Surfing, tall grass encounters
Where To Catch Koffing in FRLG
To get Koffing, start by catching Koffing through walking and surfing encounters at Lv. 28-40. The chain covers 2 catchable stages before reaching the final form.
Step 2Catch or Evolve into WeezingPokémon Mansion - 1FLv.32FloorFireRedRate 5%Pokémon Mansion - 2FLv.32FloorFireRedRate 5%Pokémon Mansion - 3FLv.32FloorFireRedRate 5%Pokémon Mansion - B1FLv.34FloorFireRedRate 5%or evolve from Koffing (Step 1)
Koffing Weakness
Ground and Psychic moves hit Koffing for super-effective damage. 4 resistances help offset the weaknesses. Levitate grants an additional Ground immunity, reshaping the matchup chart. Koffing's physical bulk (base 95 Def) helps cushion physical weakness hits, but special attackers are the bigger threat.
| Damage | Types |
|---|---|
| 2x (Weak) | Ground, Psychic |
| 0.5x (Resist) | Grass, Fighting, Poison, Bug |
- Dark and Steel types added — Fairy does not exist yet
- Moves are Physical or Special based on type, not per move
What is Koffing Weak Against
AvgBest Pokemon Against Koffing
Kadabra Psychic | C | |
Kadabra Psychic | C | |
Kadabra Psychic | C | |
Available Move Moves
Damage vs Koffing View Kadabra builds →Future Sight 2x251-296%KO | ||
Exeggutor GrassPsychic | B | |
Hypno Psychic | C | |
Kadabra Psychic | C | |
Available Move Moves
Damage vs Koffing View Kadabra builds →Future Sight 2x251-296%KO | ||
Hypno Psychic | C | |
Exeggutor GrassPsychic | B | |
Kadabra Psychic | C | |
Available Move Moves
Damage vs Koffing View Kadabra builds →Future Sight 2x245-289%KO | ||
Hypno Psychic | C | |
Exeggutor GrassPsychic | B | |
Kadabra Psychic | C | |
Available Move Moves
Damage vs Koffing View Kadabra builds →Future Sight 2x255-300%KO | ||
Hypno Psychic | C | |
Exeggutor GrassPsychic | B | |
Deoxys Psychic | A | |
Obtain MethodBirth Island Interact Encounter | ||
Mewtwo Psychic | S | |
Obtain MethodCerulean Cave Interact Encounter Available Moves Moves
Damage vs Koffing View Mewtwo builds →Psychic 2x240-283%KO Earthquake 2x75-88% | ||
Lugia Psychic | S | |
Obtain MethodNavel Rock Interact Encounter Available Moves Moves
Damage vs Koffing View Lugia builds →Psychic 2x152-180%KO Earthquake 2x64-75% | ||
Kadabra Psychic | C | |
Available Move Moves
Damage vs Koffing View Kadabra builds →Future Sight 2x256-302%KO | ||
Xatu Psychic | C | |
In FireRed & LeafGreen, Snubbull's Earthquake hits Koffing for 60-71%. Diglett's Earthquake hits Koffing for 54-64%. Porygon deals 75-88% with Psychic.
B | ||
Recommended Build AbilityIntimidate ItemSitrus Berry NatureAdamant Moves
Damage vs Koffing View Snubbull builds →Earthquake 2x60-71% Thief13-15% | ||
C | ||
Recommended Build AbilityArenatrap ItemChoice Band NatureAdamant Moves
Damage vs Koffing View Diglett builds →Earthquake 2x54-64% | ||
C | ||
Recommended Build AbilityTrace ItemLeftovers NatureBrave Moves
Damage vs Koffing View Porygon builds →Psychic 2x75-88% Facade19-23% | ||
C | ||
Recommended Build AbilityLevitate ItemChoice Band NatureAdamant Moves
Damage vs Koffing View Koffing builds →Explosion105-124%KO Sludge Bomb19-22% Shadow Ball34-40% | ||
C | ||
Recommended Build AbilityEarlybird ItemChoice Band NatureJolly Moves
Damage vs Koffing View Doduo builds →Drill Peck36-43% Double Edge54-64% | ||
Koffing Evolutions
One evolution ahead. Koffing grows into Weezing through a straightforward two-stage chain. A decent partner pool for breeding via one egg group. Eggs are average hatch time. The evolved forms gain up to 150 total stats over Koffing. View every chain in the Evolution Chart.
How to Evolve
Breeding
Breed Koffing easily with 22 breeding partners from the Indeterminate egg group. Pass egg moves like Destiny Bond, Pain Split, Psybeam and 3 more to offspring.
FRLG Koffing Best Moveset
Ground immunity through AbilityLevitate and 95 Defense solid for the stage. Weezing's defensive moveset is one evolution away with the bulk to use it.
Best Build
Koffing best EVs are HP and Attack
Physical Wallbreaker Moveset
- Explosion
- Will O Wisp
- Sludge Bomb
- Shadow Ball
Recommended Teammates
Moves List
Without breeding, Koffing misses out on Destiny Bond and Pain Split. That's 6 egg moves adding depth that the base kit lacks. STAB comes from Sludge Bomb and Sludge, with Normal and Fire coverage and more rounding things out.
How to Read the Moves Table
Tabs
- Level-Up
- Learned by leveling up.
- TM
- Taught by a Technical Machine.
- Egg
- Inherited via breeding.
- Tutor
- NPC tutor (cost: items, BP, money).
- Reminder
- An NPC reteaches any move this Pokemon could have learned by leveling up.
- Transfer
- Carried over from an older game using Pokemon HOME.
- Event
- Given out through Mystery Gift events.
Visual Signals
CAT (Category)
How the move deals damage and which stats it uses.
A small dot on the icon's corner marks the move as contact. That triggers abilities like Static, Flame Body, Rough Skin, or Iron Barbs, plus items like Rocky Helmet and Sticky Barb.
Tier (S to D)
Each move's competitive rank in RankedBoost's system. TM, Egg, and Tutor sort by tier by default (best first). On Level-Up, click the Tier header to do the same.
PWR (Power)
Base damage. Numbers shown in a type color include STAB (base × 1.5). Hover any colored number to see the math.
— means no power (status moves) or variable power.
Sorting & Filter
Click any column header to sort. Level-Up opens with Lv 1 at the top. TM, Egg, and Tutor open with the highest-tier moves at the top.
Search filters by move name or type. The Filter button limits the list to STAB, Physical, Special, or Status moves.
Level-Up Moves
TM Moves
Egg Moves
Tutor Moves
Base Stats
Its thin, balloon-like body is inflated by horribly toxic gases. It reeks when it is nearby.
Because it stores several kinds of toxic gases in its body, it is prone to exploding without warning.
Koffing FireRed & LeafGreen Guide
Koffing can be caught in the wild at Pokemon Mansion and Celadon City in Pokemon FireRed & LeafGreen.
Game Availability
One of the original 151, Koffing has appeared in 20 games — most mainline games. From Red & Blue through the latest titles, it's rarely been left out of a regional Pokedex.
Click a game to view version-specific details
- Gen 1RBDebut

Red & Blue - Gen 1Y
Yellow - Gen 2GS

Gold & Silver - Gen 2C
Crystal - Gen 3RS

Ruby & Sapphire - Gen 3E
Emerald - Gen 3FRLG

FireRed & LeafGreen - Gen 4DP

Diamond & Pearl - Gen 4Pt
Platinum - Gen 4HGSS

HeartGold & SoulSilver - Gen 5BW

Black & White - Gen 5B2W2

Black 2 & White 2 - Gen 6XY

X & Y - Gen 6ORAS

Omega Ruby & Alpha Sapphire - Gen 7SM

Sun & Moon - Gen 7USUM

Ultra Sun & Ultra Moon - Gen 7LGPE

Let's Go Pikachu & Eevee - Gen 8SwSh

Sword & Shield - Gen 8BDSP

Brilliant Diamond & Shining Pearl - Gen 8PLA
Legends: Arceus - Gen 9SV

Scarlet & Violet - Gen 9LZA
Legends: Z-A - Gen 10WW

Winds & Waves