Koffing
#109 in the Red and Blue Pokédex • Poison Gas Pokémon
Pokémon Red
Because it stores several kinds of toxic gases in its body, it is prone to exploding without warning.
Pokémon Blue
Because it stores several kinds of toxic gases in its body, it is prone to exploding without warning.
Pokédexes
Egg Group
Steps to Hatch
Effort Values Yielded
Gender Ratio
Capture Rate
Base Experience
| Pokémon | Requires | Evolution |
|---|---|---|
 Koffing #109 | Level 35 |  Weezing #110 |
Pokémon Blue
| Location | Method | Level | Chance | Conditions |
|---|---|---|---|---|
Pokémon Mansion Pokemon Mansion (1F) | Walking in tall grass or a cave | 30 | 5% | - |
Pokémon Mansion Pokemon Mansion (2F) | Walking in tall grass or a cave | 30 | 5% | - |
Pokémon Mansion Pokemon Mansion (3F) | Walking in tall grass or a cave | 34 | 5% | - |
Pokémon Mansion Pokemon Mansion (B1F) | Walking in tall grass or a cave | 35 | 5% | - |
Pokémon Red
| Location | Method | Level | Chance | Conditions |
|---|---|---|---|---|
Pokémon Mansion Pokemon Mansion (1F) | Walking in tall grass or a cave | 32 | 20% | - |
Pokémon Mansion Pokemon Mansion (1F) | Walking in tall grass or a cave | 30 | 20% | - |
Pokémon Mansion Pokemon Mansion (2F) | Walking in tall grass or a cave | 34 | 20% | - |
Pokémon Mansion Pokemon Mansion (2F) | Walking in tall grass or a cave | 34 | 15% | - |
Pokémon Mansion Pokemon Mansion (2F) | Walking in tall grass or a cave | 30 | 10% | - |
Pokémon Mansion Pokemon Mansion (3F) | Walking in tall grass or a cave | 31 | 20% | - |
Pokémon Mansion Pokemon Mansion (3F) | Walking in tall grass or a cave | 35 | 15% | - |
Pokémon Mansion Pokemon Mansion (B1F) | Walking in tall grass or a cave | 33 | 20% | - |
Pokémon Mansion Pokemon Mansion (B1F) | Walking in tall grass or a cave | 31 | 20% | - |
Pokémon Mansion Pokemon Mansion (B1F) | Walking in tall grass or a cave | 31 | 10% | - |
| 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 |