If your starter is Charmander, then go to the Elite Four and beat them. After that, it'll roam around Kanto.
after meeting it in several places,its gone to the end of rt.25,the hill
Piplup does not exist in Pokemon LeafGreen or FireRed.
No, you cannot find cyndaquil in LeafGreen.
you should go to gamestop
LeafGreen version does not have Growlithe.
In the grass...
You cannot catch houndour in Pokemon leafgreen either get one from Pokemon emerald or Pokemon colosseum.
there is no such Pokemon
That item doesn't exist in leafgreen.
you can't catch aipom in leafgreen but you can get one from Pokemon colosseum or Pokemon emerald.
There aren't growlithe in LeafGreen. FireRed has growlithe, LeafGreen has vulpix.
it's in pokemon leafgreen