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Pokemon Blue Version

151 Pokémon, 165 moves, 227 locations, 391 trainers.

Pokemon Blue Version

WEEZING artwork
WEEZING sprite
Poison

Where two kinds of poison gases meet, 2 KOFFINGs can fuse into a WEEZING over many years

Pokédex #

110

Species

POISON GAS

Height

3'11"

Weight

21.0 lbs

Base Exp

173

Catch Rate

60

Growth Rate

Medium Fast

Base Stats

Total

420

HP 65
Attack 90
Defense 120
Special 85
Speed 60

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.

125-140 95-110 125-140 90-105 65-80
Trainer team

What enemy teams usually bring.

133 104 133 98 73
Fully raised

A strong end-of-journey version.

172 142 172 137 112

How To Get It

4 wild locations
0 special sources

Wild

4 places
Wild encounters up to Lv 42
Location
Method
Levels
Slot Odds
Pokemon Mansion 1F Grass Lv 39 1.17%
Pokemon Mansion 2F Grass Lv 37 1.17%
Pokemon Mansion 3F Grass Lv 42 1.17%
Pokemon Mansion B1F Grass Lv 42 1.17%

Fishing

Odds shown per cast.

This Pokémon is not found by fishing in Pokemon Blue 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 Blue 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
SLUDGE
Poison
Physical 65 100% 20 Slot 3
Level
Move
Type
Category
Power
Accuracy
PP
Lv 32 SLUDGE
Poison
Physical 65 100% 20
Lv 39 SMOKESCREEN
Normal
Status 0 100% 20
Lv 43 SELFDESTRUCT
Normal
Physical 130 100% 5
Lv 49 HAZE
Ice
Status 0 100% 30
Lv 53 EXPLOSION
Normal
Physical 170 100% 5
Move
Type
Category
Power
Accuracy
PP
Machine
TOXIC
Poison
Status 0 85% 10 TM06 (Toxic)
HYPER BEAM
Normal
Physical 150 90% 5 TM15 (Hyper Beam)
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)