Well, its very simple... just go to your pokedex, then go to koffing, next click on AREA and it should show you the location of Koffing, this goes for all the rest of the pokemon. and if you have not witnessed a sighting of koffing, then I don't know what to tell you, go in a cave, I give a hoot.
koffing evolves at level 35
Koffing is in Lilycove City.
Koffing evolves into Weezing at level 35 in Pokémon FireRed. James uses a Koffing in the anime.
Koffing evolves into Weezing at level 35.
it is koffing. Koffing i think is the one.
Koffing evolves into Weezing at Level 35
Koffing evolves into Wheezing, starting at level 35.
Koffing evolves into Weezing at level 35
Koffing evolves at Level 35 in Pokémon Ruby.
Koffing is #109 in the national pokedex, and it is a Poison type Pokemon.
Koga's Pokemon are: Koffing Muk Koffing Weezing
Koffing evolves at level at level 35 into Weezing.