Koffing

Koffing (Japanese: ドガース Dogaasu) is a -type Pokémon introduced in Generation I.

Physiology
Koffing is a Poison Gas Pokémon. Its body is purple and spherical with a skull and crossbones on the lower parts of its body. It has openings that allow gases to escape. A Koffing will spew a harmless gas if its happy, and a poisonous gas if it's angry. Koffing mainly eats rotten kitchen garbage.

Natural abilities
Koffing have the ability Levitate. Levitate causes all -type moves to miss Koffing. Lighter-than-air gases in its body keep it aloft. The gases not only smell, they are also explosive. Koffing's signature attack is Poison Gas.

Evolution
Koffing evolves into Weezing at Level 35.

Leveling
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TM/HM
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Appearances
Koffing first appeared in the anime in Pokemon Emergency as James' Pokémon. It was extremely loyal to him, so much that it evolved into Weezing in Dig Those Diglett.

A group of wild Koffing appeared in A Poached Ego, where they were captured by a poacher along with a group of Ekans. They were rescued by Team Rocket, who were forced to release Jessie's Arbok and James' Weezing in the wild with them.

Trivia

 * Despite Koffing's diet of rotten kitchen garbage, it is unable to learn Gunk Shot, which involves the description says that the user shoots filthy garbage at the foe.
 * Koffing is one of three Pokemon based on forms of environmental pollution, with the other two being Grimer and Trubbish (and their evolutions).
 * Koffing is the mascot of Smogon, an internet resource handling and analyzing competitive Pokemon battling.
 * Koffing's name (DOGARS) is sung in Roxie's Gym in the background in the Japanese version, while in the English version Pokémon is sung instead.
 * In Pokémon Red and Blue, Koffing's skull and crossbones on its body appear above its face, rather than below its face as it currently does.
 * Koffing and Weezing from Pokémon were originally named Ny and La, referencing the polluted cities of New York & Los Angeles.
 * Koffing and its evolution Weezing were originally going to become a part  type Alolan Form in Sun and Moon.
 * Koffing is one of the 16 Pokemon to be made into a puppet in Japan.

Origin
Koffing resembles a cloud or perhaps a naval mine. It mostly is a physical representation of air pollution.

Etymology
The name "Koffing" is a homophone for "coughing."

Gallery
Коффинг