Gastly are found in sprout tower.
Bellsprout tower at night time.
He's in the old abandoned tower, where HO-OH was last seen
Ghastly evolves into Haunter at level 25. Then Haunter evolves by trading.
I have herd ghastly is in the sprout tower
Ghastly will evolve at level 20.
Ghastly can be found in Sprout Tower in Violet City.
you can get 1 in night in the towers.level it up.
the name is ghastly
bellsproute tower
There is no best Pokemon on Pokemon HeartGold.
there is no Pokemon Mansion in Heartgold.
It may appear in the Burned Tower or you can find it in the Safari Zone at night.