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Pokemon Yellow Version

151 Pokémon, 165 moves, 227 locations, 396 trainers.

Pokemon Yellow Version

KOFFING artwork

Normal

KOFFING sprite
Poison

In hot places, its internal gases could expand and explode without any warning. Be very careful!

Pokédex #

109

Species

POISON GAS

Height

2'00"

Weight

2.0 lbs

Base Exp

114

Catch Rate

190

Growth Rate

Medium Fast

Base Stats

Total

295

HP 40
Attack 65
Defense 95
Special 60
Speed 35

Stats at a Glance

Pick a level to compare a wild catch, a trainer's version, and a fully raised one.

Lv 1 Lv 50 Lv 100
Situation
HP
Attack
Defense
Special
Speed
Wild catch

A newly encountered one at this level.

100-115 70-85 100-115 65-80 40-55
Trainer team

What enemy teams usually bring.

108 79 108 73 48
Fully raised

A strong end-of-journey version.

147 117 147 112 87

How To Get It

0 wild locations
0 special sources

Wild

Not found in the wild in Pokemon Yellow Version.

Fishing

Odds shown per cast.

This Pokémon is not found by fishing in Pokemon Yellow Version.

Special Sources

Trades, gifts, starters, prizes, and one-off encounters.

No special way to get this Pokémon is listed in this game.

Type Matchups

Weaknesses

3

Ground x2
Bug x2
Psychic x2

Resistances

3

Fighting x0.5
Poison x0.5
Grass x0.5

Immunities

0

No immunities in Pokemon Yellow Version.

Evolution Chain

2 stages ending at WEEZING.

2 stages
  1. 1
    KOFFING sprite
    KOFFING
    #109
  2. 2
    WEEZING sprite
    WEEZING
    #110
    Level 35

Learnset

Move
Type
Category
Power
Accuracy
PP
Slot
TACKLE
Normal
Physical 35 95% 35 Slot 1
SMOG
Poison
Physical 20 70% 20 Slot 2
Move
Type
Category
Power
Accuracy
PP
Level
SLUDGE
Poison
Physical 65 100% 20 Lv 32
SMOKESCREEN
Normal
Status 0 100% 20 Lv 37
SELFDESTRUCT
Normal
Physical 130 100% 5 Lv 40
HAZE
Ice
Status 0 100% 30 Lv 45
EXPLOSION
Normal
Physical 170 100% 5 Lv 48
Move
Type
Category
Power
Accuracy
PP
Machine
TOXIC
Poison
Status 0 85% 10 TM06 (Toxic)
RAGE
Normal
Physical 20 100% 20 TM20 (Rage)
THUNDERBOLT
Electric
Special 95 100% 15 TM24 (Thunderbolt)
THUNDER
Electric
Special 120 70% 10 TM25 (Thunder)
MIMIC
Normal
Status 0 100% 10 TM31 (Mimic)
DOUBLE TEAM
Normal
Status 0 100% 15 TM32 (Double Team)
BIDE
Normal
Status 0 100% 10 TM34 (Bide)
SELFDESTRUCT
Normal
Physical 130 100% 5 TM36 (Selfdestruct)
FIRE BLAST
Fire
Special 120 85% 5 TM38 (Fire Blast)
REST
Psychic
Status 0 100% 10 TM44 (Rest)
EXPLOSION
Normal
Physical 170 100% 5 TM47 (Explosion)
SUBSTITUTE
Normal
Status 0 100% 10 TM50 (Substitute)

Trainer Uses

43 uses
Trainer
Level
Slot
Location
Lv 22 1
Lv 20 3
Lv 34 1
Lv 26 1
Lv 26 2
Lv 16 1
Lv 27 1
Lv 14 3 Jessie & James
Lv 25 1 Jessie & James
Lv 12 3 Mt. Moon B2F
Lv 20 2 Rocket Hideout B1F
Lv 20 3 Rocket Hideout B1F
Showing 1 to 12 of 43 results