Koffing
#109 in the Kanto Pokédex • Poison Gas Pokémon
Koffing in the National Pokédex
Pokédex entries
FireRed
Its thin, balloon-like body is inflated by horribly toxic gases. It reeks when it is nearby.
LeafGreen
Because it stores several kinds of toxic gases in its body, it is prone to exploding without warning.
Pokémon details
Type
Category
Ability
Height
Weight
National Pokédex
Kanto Pokédex
Koffing in Other Games
National Dex pageMin
Max
HP
40
190
284
Attack
65
121
251
Defense
95
175
317
Sp. Atk
60
112
240
Sp. Def
45
85
207
Speed
35
67
185
Total
340
Ranges are for Level 100. Max assumes a beneficial nature, 252 EVs, and 31 IVs; min assumes a hindering nature, 0 EVs, and 0 IVs.
Game availability
Available within the FireRed/LeafGreen pair. Depending on the species, acquisition can require the other version, the postgame, evolution, breeding, or an event ticket. Original GBA event tickets required historical distributions; Switch ticket access differs.
| EV yield | 1 Def |
|---|---|
| Catch rate | 190 |
| Base Exp. | 114 |
| Egg groups | |
|---|---|
| Gender | 50% male 50% female |
| Egg cycles | 20 (5,375 steps) |
| Pokémon | Requires | Evolution |
|---|---|---|
 Koffing #109 | Level 35 |  Weezing #110 |
Wild encounter
Found throughout the Pokémon Mansion on Cinnabar Island. It can also be encountered, rarely, by Surfing on the water in Celadon City.
Celadon City, Pokémon Mansion
| Class | ||||||
|---|---|---|---|---|---|---|
| Start | Tackle |  |  | 35 | 95 | 35 |
| Start | Poison Gas | |  | - | 55 | 40 |
| 9 | Smog | | | 20 | 70 | 20 |
| 17 | Self-Destruct | | | 200 | 100 | 5 |
| 21 | Sludge | | | 65 | 100 | 20 |
| 25 | Smokescreen | | | - | 100 | 20 |
| 33 | Haze |  | | - | - | 30 |
| 41 | Explosion | | | 250 | 100 | 5 |
| 45 | Destiny Bond |  | | - | - | 5 |
| 49 | Memento |  | | - | 100 | 10 |
| Class | ||||||
|---|---|---|---|---|---|---|
| TM06 | Toxic | | | - | 85 | 10 |
| TM10 | Hidden Power | | | - | 100 | 15 |
| TM11 | Sunny Day |  | | - | - | 5 |
| TM12 | Taunt | | | - | 100 | 20 |
| TM17 | Protect | | | - | - | 10 |
| TM18 | Rain Dance |  | | - | - | 5 |
| TM21 | Frustration | | | - | 100 | 20 |
| TM24 | Thunderbolt |  |  | 95 | 100 | 15 |
| TM25 | Thunder | | | 120 | 70 | 10 |
| TM27 | Return | | | - | 100 | 20 |
| TM30 | Shadow Ball | | | 80 | 100 | 15 |
| TM32 | Double Team | | | - | - | 15 |
| TM34 | Shock Wave | | | 60 | - | 20 |
| TM35 | Flamethrower | | | 95 | 100 | 15 |
| TM36 | Sludge Bomb | | | 90 | 100 | 10 |
| TM38 | Fire Blast | | | 120 | 85 | 5 |
| TM41 | Torment | | | - | 100 | 15 |
| TM42 | Facade | | | 70 | 100 | 20 |
| TM43 | Secret Power | | | 70 | 100 | 20 |
| TM44 | Rest |  | | - | - | 10 |
| TM45 | Attract | | | - | 100 | 15 |
| TM46 | Thief | | | 40 | 100 | 10 |
| HM05 | Flash | | | - | 70 | 20 |
| Class | |||||
|---|---|---|---|---|---|
| Explosion | | | 250 | 100 | 5 |
| Mimic | | | - | - | 10 |
| Substitute | | | - | - | 10 |
| Class | |||||
|---|---|---|---|---|---|
| Destiny Bond | | | - | - | 5 |
| Pain Split | | | - | - | 20 |
| Psybeam | | | 65 | 100 | 20 |
| Psywave | | | - | 80 | 15 |
| Screech | | | - | 85 | 40 |
| Will-O-Wisp | | | - | 75 | 15 |
Levitate
Not hit by GROUND attacks.
Evades Ground moves.
