Once you have beaten the elite four, and obtained the national dex, you need to go to one island and talk to celio. Then go up to the fire mountain where moltres is (forgot the name) and go to the side where the two rocket grunts are at. If you have the national dex there will be a cave behind them. Talk to the grunts and battle so they move. Then just go through the cave and the ruby is in there. Glad i could be of service.
-B
in firered
No.
There are none in Pokemon Ruby trade from FireRed or LeafGreen.
It is in Saphire, Ruby, and Emerald not Firered.
No, but i believe there is in ruby
there is only one ruby.
Sapphire and Ruby came out before firered and leafgreen but they are compatible with them.
Not any hoenn Pokemon but firered and leafgreen can catch alot of kanto and johto Pokemon ruby and sapphire can and can't.
you don't get a second ruby you get a sapphire
it is on the mt ember
give it to celio
Gastly is unobtainable in Pokemon Ruby. You need to trade one from Pokemon Firered or Leafgreen.