You can find them in the Lost tower(South of Solacean town)and In the Old Chateau (In Eterna forest). They are mostly found at night. A Shiny gastly has a blue aura surrounding it. Gastly will evolve at lvl 25 into Haunter. and to obtain Gengar, you must trade. (btw, it is a ghost type meaning that it is useless against normal types.) Good luck trainers!
Gastly is found in Bellsprout Tower.
on which game?
you find gastly in the Burned Tower and the Sprout Tower
Go to lavendar town and then enter Pokemon tower in there you can find a gastly.
You can find a gastly in sprout tower at night in heart gold in soul silver i dont now.
To catch a shiny Gastly, there are three things you can try. First off, you can try catching a shiny Gastly in the wild. However, there is a 1 in 8192 chance of encountering a shiny Gastly and may take you hours to find one. Second, you can try breeding a shiny Gastly. There is a greater chance to find a shiny Gastly by breeding, but it still takes a few hours depending on how well you breed. Last, you can use your PokeRadar to chain Gastly. Depending on your luck and how well you chain, you can find a shiny Gastly within minutes or more. If your chain of Gastly reach up to 40 or more, your chance of finding a shiny patch is 1 in 200. A shiny patch will contain a shiny Gastly. You may even find several shiny Gastly from chaining. If you're really lucky, you can get a shiny Gastly from your first or second or even tenth chain.
you can find gastly in the tower where ho-oh is if you have gotten that far, it's most likely to appear at night
Gastly is in lots of places, like the Sprout Tower or Safari Zone, but only at night.
at nigt you can find it in the bell tower or the sprout tower.
In the Pokemon tower or sprout tower.
You can find recruitable Gastly and its evolutions in Sky Stairway.
you find Gastly at night time in the lakes + if Ur to dumb to no than don't play pearl diamond + platinum
you can find him there and in bellsprout tower
haunter then gastly
Once you have the silph scope you can go inside Pokemon tower and randomly on the floors where its foggy gastly can appear. Also you can find gastly inside lost cave on five island.
Gastly evolves at level 25.
get a gastly get it to level 24 then walla you have a hauter
To get Gastly you have to go to sprout tower at night.
Evolve a gastly that you can catch in the sprout tower
gastly evolves at level 25
gastly evolve on level 25
Sprout Tower, the tower you find Ho-Oh in, or on certain routes in your Pokewalker.
you will get Gastly, hunter and the gost is a Marowak.