That building is in saffron city.
You need to get the Silph Scope.
It is located underneath the game corner in celadon city.
The ghosts can't be fought in their current forms. To beat them you have to see them and you can when you get a Silph Scope. You get the Silph Scope in Celadon City somewhere (No spoilers unless u want them)
You get it from one of professor Oak's aids i believe, other wise, you get it from someone from the Silph Co.
That building is in saffron city.
You need to get the Silph Scope.
It is located underneath the game corner in celadon city.
The ghosts can't be fought in their current forms. To beat them you have to see them and you can when you get a Silph Scope. You get the Silph Scope in Celadon City somewhere (No spoilers unless u want them)
The silph scope is not in silph co its in the game corner.
Defeat team rocket at the game corner to get the silph scope.
You get it from one of professor Oak's aids i believe, other wise, you get it from someone from the Silph Co.
There is no silph scope in Silver, as Lavender Tower doesn't exist anymore.
You have to go to Silph Co in Pokemon LeafGreen. You have to go there to get the Silph scope, which you need to advance.
You need to get the Silph Scope from Silph Co.
You will need to use the Silph Scope which is obtained from the rocket boss in the rocket game corner.
You need thesilph scope to see what it is. then, u find out its a marowak and you kill it (because u cant catch it. It was a ghost.) you get the silph scope in silph co.