Koffing
#114 in the Gold and Silver Pokédex • Poison Gas Pokémon
Pokémon Gold
Its thin, filmy body is filled with gases that cause constant sniffles, coughs and teary eyes.
Pokémon Silver
The poisonous gases it contains are a little bit lighter than air, keeping it slight ly airborne.
Pokédexes
Egg Group
Steps to Hatch
Effort Values Yielded
Gender Ratio
Capture Rate
Base Experience
| Pokémon | Requires | Evolution |
|---|---|---|
 Koffing #114 | Level 35 |  Weezing #115 |
Pokémon Gold
| Location | Method | Level | Chance | Conditions |
|---|---|---|---|---|
Burned Tower Burned Tower (1F) | Walking in tall grass or a cave | 14 | 30% | - |
Burned Tower Burned Tower (1F) | Walking in tall grass or a cave | 16 | 5% | - |
Burned Tower Burned Tower (B1F) | Walking in tall grass or a cave | 14 | 30% | During the day |
Burned Tower Burned Tower (B1F) | Walking in tall grass or a cave | 14 | 30% | In the morning |
Burned Tower Burned Tower (B1F) | Walking in tall grass or a cave | 14 | 30% | At night |
Burned Tower Burned Tower (B1F) | Walking in tall grass or a cave | 16 | 20% | During the day |
Burned Tower Burned Tower (B1F) | Walking in tall grass or a cave | 16 | 20% | In the morning |
Burned Tower Burned Tower (B1F) | Walking in tall grass or a cave | 16 | 20% | At night |
Team Rocket HQ | Static encounter, only one chance | 21 | 100% | - |
Team Rocket HQ | Static encounter, only one chance | 21 | 100% | - |
Team Rocket HQ | Static encounter, only one chance | 21 | 100% | - |
Team Rocket HQ | Static encounter, only one chance | 21 | 100% | - |
Team Rocket HQ | Static encounter, only one chance | 21 | 100% | - |
Team Rocket HQ | Static encounter, only one chance | 21 | 100% | - |
Team Rocket HQ | Static encounter, only one chance | 21 | 100% | - |
Pokémon Silver
| Location | Method | Level | Chance | Conditions |
|---|---|---|---|---|
Burned Tower Burned Tower (1F) | Walking in tall grass or a cave | 14 | 30% | - |
Burned Tower Burned Tower (1F) | Walking in tall grass or a cave | 16 | 5% | - |
Burned Tower Burned Tower (B1F) | Walking in tall grass or a cave | 14 | 30% | During the day |
Burned Tower Burned Tower (B1F) | Walking in tall grass or a cave | 14 | 30% | In the morning |
Burned Tower Burned Tower (B1F) | Walking in tall grass or a cave | 14 | 30% | At night |
Burned Tower Burned Tower (B1F) | Walking in tall grass or a cave | 16 | 20% | During the day |
Burned Tower Burned Tower (B1F) | Walking in tall grass or a cave | 16 | 20% | In the morning |
Burned Tower Burned Tower (B1F) | Walking in tall grass or a cave | 16 | 20% | At night |
Team Rocket HQ | Static encounter, only one chance | 21 | 100% | - |
Team Rocket HQ | Static encounter, only one chance | 21 | 100% | - |
Team Rocket HQ | Static encounter, only one chance | 21 | 100% | - |
Team Rocket HQ | Static encounter, only one chance | 21 | 100% | - |
Team Rocket HQ | Static encounter, only one chance | 21 | 100% | - |
Team Rocket HQ | Static encounter, only one chance | 21 | 100% | - |
Team Rocket HQ | Static encounter, only one chance | 21 | 100% | - |
| Class | Description | ||||||
|---|---|---|---|---|---|---|---|
| Start | Tackle |  |  Physical | 35 | 95 | 35 | A full-body charge attack. |
| Start | Poison Gas |  |  Status | - | 55 | 40 | A move that may poison the foe. |
| 9 | Smog | |  Special | 20 | 70 | 20 | An attack that may poison the foe. |
| 17 | Self-Destruct | | Physical | 200 | 100 | 5 | Powerful but makes the user faint. |
| 21 | Sludge | | Special | 65 | 100 | 20 | An attack that may poison the foe. |
| 25 | Smokescreen | | Status | - | 100 | 20 | Lowers the foe's accuracy. |
| 33 | Haze |  | Status | - | - | 30 | Eliminates all stat changes. |
| 41 | Explosion | | Physical | 250 | 100 | 5 | Very powerful but makes user faint. |
| 45 | Destiny Bond |  | Status | - | - | 5 | The foe faints if the user does. |
| Class | Description | |||||
|---|---|---|---|---|---|---|
| Destiny Bond | | Status | - | - | 5 | The foe faints if the user does. |
| Pain Split | | Status | - | - | 20 | Adds user & foe's HPs. Shares total. |
| Psybeam |  | Special | 65 | 100 | 20 | An attack that may confuse the foe. |
| Psywave | | Special | - | 80 | 15 | An attack with variable power. |
| Screech | | Status | - | 85 | 40 | Sharply reduces the foe's DEFENSE. |
| Class | Description | ||||||
|---|---|---|---|---|---|---|---|
| TM03 | Curse |  | Status | - | - | 10 | Works differently for ghost-types. |
| TM04 | Rollout |  | Physical | 30 | 90 | 20 | Attacks 5 turns with rising power. |
| TM06 | Toxic | | Status | - | 85 | 10 | A poison move with increasing damage. |
| TM07 | Zap Cannon |  | Special | 100 | 50 | 5 | An attack that always paralyzes. |
| TM10 | Hidden Power | | Special | 1 | 100 | 15 | The power varies with the Pokémon. |
| TM11 | Sunny Day |  | Status | - | - | 5 | Boosts fire-type moves for 5 turns. |
| TM13 | Snore | | Special | 40 | 100 | 15 | An attack useable only while asleep. |
| TM17 | Protect | | Status | - | - | 10 | Foils attack that turn. It may fail. |
| TM20 | Endure | | Status | - | - | 10 | Always leaves at least 1HP. |
| TM21 | Frustration | | Physical | - | 100 | 20 | An attack based on lack of loyalty. |
| TM25 | Thunder | | Special | 120 | 70 | 10 | An attack that may cause paralysis. |
| TM27 | Return | | Physical | - | 100 | 20 | An attack that is based on loyalty. |
| TM32 | Double Team | | Status | - | - | 15 | Heightens evasive ness. |
| TM34 | Swagger | | Status | - | 90 | 15 | Causes confusion and raises ATTACK. |
| TM35 | Sleep Talk | | Status | - | - | 10 | Randomly attacks while asleep. |
| TM36 | Sludge Bomb | | Special | 90 | 100 | 10 | An attack that may poison the foe. |
| TM38 | Fire Blast | | Special | 120 | 85 | 5 | An attack that may cause a burn. |
| TM44 | Rest | | Status | - | - | 5 | Sleep for 2 turns to fully recover. |
| TM45 | Attract | | Status | - | 100 | 15 | Makes the opposite gender infatuated. |
| TM46 | Thief |  | Physical | 40 | 100 | 10 | An attack that may steal a held item. |