#0109 Koffing

Artwork: PokéAPI.

Poison

Abilities

LevitateGives full immunity to all Ground-type moves.Neutralizing GasNullifies the abilities of all Pokémon.

Hidden ability

StenchDamaging moves used in battle have a 20% chance to make the target flinch; this can stack with King’s Rock and move effects.

Capture

Easy catch

Gender

50.0% female

Egg groups

Amorphous

Growth

Medium Fast

EV yield

1 Defense

Wild held item

Smoke Ball

Koffing’s base stats

HP	40
Attack	65
Defense	95
Sp. Atk	60
Sp. Def	45
Speed	35
Total	340

Where to find it

Chance per encounter, under the conditions shown.

Times and conditions

• Morning: 4:00–9:59
• Day: 10:00–19:59
• Night: 20:00–3:59

Calendar encounters can replace a land slot on specific dates.

Safari candidates depend on the selected area and time. Object Arrangement does not unlock in this hack; bonus block encounters are excluded.

Where to find Koffing in the wild

Location	Method / conditions	Level	Chance
Route 17	Grass/cave, morning	27	10%
Route 17	Grass/cave, day	27	10%
Route 17	Grass/cave, night	27	10%
Route 13	Grass/cave, morning	25	10%
Route 13	Grass/cave, day	25	10%
Route 13	Grass/cave, night	25	10%
Burned Tower	Grass/cave, any time	14	30%
Safari Zone: Marshland	Safari Zone: Marshland area selected, Grass, all day	15	Not fixed
Safari Zone: Marshland	Safari Zone: Marshland area selected, Grass, all day	16	Not fixed
Safari Zone: Marshland	Safari Zone: Marshland area selected, Grass, all day	17	Not fixed

Safari Zone: choose the listed area. Area selection unlocks during Baoba’s Sandshrew test, after his Geodude test. Object Arrangement never unlocks in this hack, so block-dependent bonus encounters are excluded. The listed candidates do not have a verified encounter percentage.

Evolution

Evolves into Weezing at Lv 25.

Level-up moves

“On evolution” moves are learned when this Pokémon evolves. Open a move for its full effects and any special behavior in this hack.

Koffing’s level-up moves

Level	Move	Type	Category	Power	Accuracy	PP	Effect and notes
1	Poison Gas	Poison	Status	—	90	40	A cloud of poison gas is sprayed in the foe’s face. It may poison the target.
1	Tackle	Normal	Physical	40	100	35	A physical attack in which the user charges and slams into the foe with its whole body.
4	Smog	Poison	Special	30	70	20	The foe is attacked with a discharge of filthy gases. 40% chance to poison the target.
8	Smokescreen	Normal	Status	—	100	20	The user releases an obscuring cloud of smoke. Lowers the foe’s accuracy by 1 stage.
12	Clear Smog	Poison	Special	50	—	15	Throws a special lump of mud at the target, resetting its stat changes.
16	Assurance	Dark	Physical	60	100	10	If the foe has already taken damage, this attack’s power is 2 times higher.
20	Sludge	Poison	Special	65	100	20	Unsanitary sludge is hurled at the foe. It has a 30% chance to poison the target.
24	Haze	Ice	Status	—	—	30	The user creates a haze that eliminates every stat change among all the Pokémon engaged in battle.
28	Self-Destruct	Normal	Physical	200	100	5	The user explodes to hit all Pokémon in battle, then faints. The targets’ Defense is halved.
32	Sludge Bomb	Poison	Special	90	100	10	The user hurls filthy sludge at the foe. It has a 30% chance to poison the target.
36	Toxic	Poison	Status	—	90	10	A move that leaves the target badly poisoned. Its poison damage worsens every turn.
40	Belch	Poison	Special	120	90	10	The user belches at the foe to deal damage. It can’t be used unless the user has eaten a Berry.
44	Explosion	Normal	Physical	250	100	5	A huge explosion hits all Pokémon in battle, and the user faints. The targets’ Defense is halved.
48	Memento	Dark	Status	—	100	10	The user sacrifices its own life. In return, it lowers the target’s Attack and Sp. Atk by 2 stages.
52	Destiny Bond	Ghost	Status	—	—	5	If the user faints after using this move, the foe that landed the knockout hit dies along with it.

TMs and HMs

TMs and HMs Koffing can learn

TM / HM	Move	Type	Category	Power	Accuracy	PP	Effect and notes
TM06	Toxic	Poison	Status	—	90	10	A move that leaves the target badly poisoned. Its poison damage worsens every turn.
TM10	Hidden Power	Normal	Special	60	100	15	A unique attack that varies in type and intensity depending on the Pokémon using it.
TM11	Sunny Day	Fire	Status	—	—	5	The user intensifies the sun for 5 turns. Fire-type moves become 1.5 times stronger.
TM12	Taunt	Dark	Status	—	100	20	The foe is taunted into a rage that allows it to use only attack moves for 2 to 4 turns.
TM17	Protect	Normal	Status	—	—	10	It enables the user to evade all attacks for 1 turn. Its chance of failing rises if used in succession.
TM18	Rain Dance	Water	Status	—	—	5	The user summons a heavy rain for 5 turns. Water-type moves become 1.5 times stronger.
TM24	Thunderbolt	Electric	Special	90	100	15	A strong electric blast is loosed at the foe. It has a 10% chance to paralyze the target.
TM25	Thunder	Electric	Special	110	70	10	A wicked thunderbolt strikes the foe. It is more accurate in rain. 30% chance to paralyze the target.
TM27	Return	Normal	Physical	var.	100	20	A full-power attack that grows more powerful the more the user likes its Trainer.
TM30	Shadow Ball	Ghost	Special	80	100	15	The user hurls a shadowy blob at the foe. 20% chance to lower its Sp. Def by 1 stage.
TM32	Double Team	Normal	Status	—	—	15	By moving rapidly, the user makes illusory copies of itself. Raises its evasiveness by 1 stage.
TM34	Shock Wave	Electric	Special	60	—	20	The user strikes the foe with a quick jolt of electricity. This attack cannot be evaded.
TM35	Flamethrower	Fire	Special	90	100	15	The foe is scorched with an intense blast of fire. It has a 10% chance to burn the target.
TM36	Sludge Bomb	Poison	Special	90	100	10	The user hurls filthy sludge at the foe. It has a 30% chance to poison the target.
TM38	Fire Blast	Fire	Special	110	85	5	The foe is hit by an intense blast of all-consuming fire. It has a 10% chance to burn the target.
TM41	Torment	Dark	Status	—	100	15	The user torments and enrages the foe, making it incapable of using the same move twice in a row.
TM42	Facade	Normal	Physical	70	100	20	An attack whose power is 2 times higher if the user is poisoned, burned, or paralyzed.
TM44	Rest	Psychic	Status	—	—	5	The user goes to sleep for 2 turns. It fully restores the user’s HP and heals any status problem.
TM45	Attract	Normal	Status	—	100	15	The user charms a foe of the opposite gender. The foe has a 50% chance of being unable to act.
TM46	Thief	Dark	Physical	60	100	25	The user attacks and steals the foe’s held item simultaneously. It can’t steal if the user holds an item.
TM58	Endure	Normal	Status	—	—	10	The user endures any attack with at least 1 HP. Its chance of failing rises if it is used in succession.
TM61	Will-O-Wisp	Fire	Status	—	85	15	The user shoots a sinister, bluish white flame at the foe to inflict a burn.
TM64	Explosion	Normal	Physical	250	100	5	A huge explosion hits all Pokémon in battle, and the user faints. The targets’ Defense is halved.
TM66	Payback	Dark	Physical	50	100	10	The user charges up, then attacks. If it moves after the foe, its power is doubled.
TM70	Flash	Normal	Status	—	100	20	The user flashes a light that lowers the foe’s accuracy by 1 stage. It can also light up caves.
TM74	Gyro Ball	Steel	Physical	var.	100	5	The user tackles the foe with a high-speed spin. The slower the user, the greater the damage.
TM79	Dark Pulse	Dark	Special	80	100	15	The user releases a horrible aura of malice. It has a 20% chance to make the target flinch.
TM82	Sleep Talk	Normal	Status	—	—	10	While it is asleep, the user randomly uses one of the moves it knows.
TM87	Swagger	Normal	Status	—	85	15	The user enrages the foe into confusion. However, it also raises the foe’s Attack by 2 stages.
TM90	Substitute	Normal	Status	—	—	10	The user makes a copy of itself using 1/4 of its HP. The copy serves as the user’s decoy.
TM94	Venoshock	Poison	Special	65	100	10	Sprays the target with toxic fluid. Power doubles if the target is poisoned.
TM100	Clear Smog	Poison	Special	50	—	15	Throws a special lump of mud at the target, resetting its stat changes.

Move tutors

Moves Koffing can learn from tutors

Move	Type	Category	Power	Accuracy	PP	Effect and notes	Tutor location, cost and requirements
Curse	Ghost	Status	—	—	10	Curses the foe. Non- Ghost types raise Attack and Defense by 1 stage and lower Speed by 1 stage.	Pokémon Tower, upper floors · Cost: Free Requirements: Pokémon Tower: side battles and extras the little girl in the Pokémon Tower, Lavender Town
Haze	Ice	Status	—	—	30	The user creates a haze that eliminates every stat change among all the Pokémon engaged in battle.	Mahogany Gym, Pryce's room · Cost: Free Requirements: Mahogany Gym: Pryce's no-weather Double Battle (the Glacier Badge); Mahogany Town: small extras Mahogany Gym

Egg moves

Koffing’s egg moves

Move	Type	Category	Power	Accuracy	PP	Effect and notes
Curse	Ghost	Status	—	—	10	Curses the foe. Non- Ghost types raise Attack and Defense by 1 stage and lower Speed by 1 stage.
Destiny Bond	Ghost	Status	—	—	5	If the user faints after using this move, the foe that landed the knockout hit dies along with it.
Grudge	Ghost	Status	—	—	5	If the user faints, its grudge drops the PP of the move that knocked it out to 0.
Pain Split	Normal	Status	—	—	20	The user adds its HP to the foe’s HP, then equally shares the combined HP with the foe.
Psybeam	Psychic	Special	65	100	20	The foe is attacked with a peculiar ray. It has a 10% chance to confuse the target.
Screech	Normal	Status	—	85	40	An earsplitting screech is emitted to lower the foe’s Defense by 2 stages.
Spite	Ghost	Status	—	100	10	The user looses its grudge on the move last used by the foe by cutting 4 PP from it.
Spit Up	Normal	Special	var.	100	10	Attacks with stored power. The more it has stored, the greater the power.
Stockpile	Normal	Status	—	—	20	The user charges up power, raising its Defense and Sp. Def. It can be used up to 3 times.
Swallow	Normal	Status	—	—	10	Heals HP with stored power. The more it has stored, the more HP it restores.
Toxic Spikes	Poison	Status	—	—	20	The user lays a trap of poison spikes at the foe’s feet. They poison foes that switch into battle.
Venom Drench	Poison	Status	—	100	20	The user drenches the foe in special poison. A poisoned foe’s Attack, Sp. Atk, and Speed fall.

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