In Galar, Weezing has a Poison/Fairy-type regional form. It evolves from Koffing starting at level 35. All Koffing in Galar evolve into this form regardless of their origin.
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Weezing is a purple Pokémon consisting of two spherical heads connected by a thin tube with another sphere in the center. The heads have differing sizes and features. The left head is larger and has prominent eyebrows, pointed teeth protruding from its lower jaw, and two flat teeth in its upper jaw. The smaller, right head simply has two pointed teeth, one at each corner of its mouth. The larger head has a cream-colored skull-and-crossbones marking below its face, while the smaller head has a ring marking instead. It is covered with many geyser-like protrusions, which usually expel mustard-colored gases. Weezing is said to form when poisonous gases pool and two Koffing fuse over many years. Very rarely, two Koffing can become a Weezing in a short timespan because of a sudden mutation. Triplet Weezing have been discovered, although they are extremely rare.
Each of Weezing's heads contains a different toxin. It mixes its gases by inflating one head and deflating the other. When its gases mix, Weezing becomes more toxic and putrid. Weezing can hover in midair, presumably due to gases lighter than air, as is the case for Koffing. Despite their stench and poison, Weezing's gases can be used to make top-grade perfume by diluting them to the highest level.
Weezing lives in urban areas. It seeks a dirty, unkempt house and nests there. At night, when the people in the house are asleep, it will go through the trash. Weezing feeds on the dust, microorganisms, and especially gases emitted by garbage and toxic waste. Weezing's body expands and smells worse upon inhaling poisonous gases. The Kantoian Weezing used to be common in Galar and created more potent toxins than their Galarian relatives.
In the Galar region, its appearance has changed due to absorbing polluted air from factories. It has a grey body with with the skull, crossbones, and ring changed to color yellow. Both heads have a hat-like tube located on top of both heads that constantly releases purified air. Five green puff of poison gas clouds can be seen floating around it. The larger head has a cloud-like mustache, while the smaller has has clouds its face in the shape of eyelashes and a beard.
Galarian Weezing feeds on polluted air and poisonous substances. The air and gases it consumes when absorbing removes the toxins before expelling it out through its two heads. Weezing's purification process will produced air that is clean while the toxin accumulates into concentrated poison gas clouds that releases and floats around it. The gas is Weezing's best weapon in battle due to being potent enough to stun and immobilize its opponents.[1]
A Weezing appeared in Lights! Camera! Pika!, under the ownership of Frank. Frank used Weezing for shooting movies, where it helped provide white smoke effects.
A Weezing appeared in I Choose You!, where it was among the Pokémon that were under the control of Marshadow.
When released from a Poké Ball, Weezing will hover in place and emit Poison Gas that juggles any opponent who comes near it, essentially serving the function of its pre-evolution, Koffing, from Super Smash Bros.
Weezing is also a float in the Poké Float stage. It appears as Chikorita leaves. Once Slowpoke appears, it will slowly deflate and move to the top of the screen.
Trophy information
The evolved form of Koffing, Weezing is basically a pair of Koffing fused together. They tend to float in the air and emit gas or noxious smoke from the outgrowths that cover their bodies. As strange as it may seem, diluting Weezing emissions as much as possible creates one of the most exquisite perfumes known to man.
Weezing loves the gases given off by rotted kitchen garbage. This Pokémon will find a dirty, unkempt house and make it its home. At night, when the people in the house are asleep, it will go through the trash.
Weezing alternately shrinks and inflates its twin bodies to mix together toxic gases inside. The more the gases are mixed, the more powerful the toxins become. The Pokémon also becomes more putrid.
By diluting its toxic gases with a special process, the highest grade of perfume can be extracted. To Weezing, gases emanating from garbage are the ultimate feast.
Weezing loves the gases given off by rotted kitchen garbage. This Pokémon will find a dirty, unkempt house and make it its home. At night, when the people in the house are asleep, it will go through the trash.
Weezing alternately shrinks and inflates its twin bodies to mix together toxic gases inside. The more the gases are mixed, the more powerful the toxins become. The Pokémon also becomes more putrid.
No other Pokémon have the same type combination as Galarian Weezing.
In certain instances in the games, such as summary pages and Pokémon Contests, a Pokémon's sprite is horizontally flipped, unless its body is asymmetrical. However, Weezing's sprite is flipped in all instances despite its asymmetrical body.
In Diamond, Pearl, and Platinum, Pokédex entries for Weezing state that triplet forms have been discovered; however, this variant has not been shown in any Pokémon media.
Weezing shares similar traits to Muk and Garbodor. All three Pokémon are pure Poison types with a single pre-evolution, roughly the same base stat totals and evolution levels, and appear to be based on a different kind of pollution; Weezing being air pollution.
Origin
Considering its looks, its ability to float, and its tendency to explode, it may have been based upon a floating naval mine or living meteorite. It is also based on smog and other forms of air pollution. Weezing may also be based on the imagined fear that heavy pollution, caused by the leakage and/or improper disposal of toxic and/or radioactive waste, may result in the creation of new and undesirable life forms.
Galarian Weezing seems to be based on perfume and the appearance of a stereotypical British gentleman.
Name origin
Weezing is a corruption of wheezing, which means "producing a whistling sound while breathing with difficulty".
Matadogas may come from 又 mata (again), 獰 dō (bad) or 毒 doku (poison), and gas. Essentially, it is a doubling of Koffing's Japanese name Dogars, and thus a doubling of Koffing–which is exactly what Weezing is. It may also be a corruption of マスタードガス masutādogasu (mustard gas).