Koffing
#109 in the Yellow Pokédex • Poison Gas Pokémon
Pokémon Yellow
In hot places, its internal gases could expand and explode without any warning. Be very careful!
Pokédexes
Kanto #109
Egg Group
Amorphous
Steps to Hatch
5,120
Effort Values Yielded
1 Def
Gender Ratio
50% male / 50% female
Capture Rate
190
Base Experience
68
| Pokémon | Requires | Evolution |
|---|---|---|
 Koffing #109 | Level 35 |  Weezing #110 |
| Class | Description | ||||||
|---|---|---|---|---|---|---|---|
| Start | Tackle |  |  Physical | 35 | 95 | 35 | |
| Start | Smog |  |  Special | 20 | 70 | 20 | |
| 32 | Sludge | | Special | 65 | 100 | 20 | |
| 37 | Smokescreen | |  Status | - | 100 | 20 | |
| 40 | Self-Destruct | | Physical | 130 | 100 | 5 | |
| 45 | Haze |  | Status | - | - | 30 | |
| 48 | Explosion | | Physical | 170 | 100 | 5 |
| Class | Description | ||||||
|---|---|---|---|---|---|---|---|
| TM06 | Toxic | | Status | - | 85 | 10 | |
| TM20 | Rage | | Physical | 20 | 100 | 20 | |
| TM24 | Thunderbolt |  | Special | 95 | 100 | 15 | |
| TM25 | Thunder | | Special | 110 | 70 | 10 | |
| TM31 | Mimic | | Status | - | - | 10 | |
| TM32 | Double Team | | Status | - | - | 15 | |
| TM34 | Bide | | Physical | - | - | 10 | |
| TM36 | Self-Destruct | | Physical | 130 | 100 | 5 | |
| TM38 | Fire Blast |  | Special | 110 | 85 | 5 | |
| TM44 | Rest |  | Status | - | - | 5 | |
| TM47 | Explosion | | Physical | 170 | 100 | 5 | |
| TM50 | Substitute | | Status | - | - | 10 |