you don't.....you trade them......
Sorry but you can't catch it in ruby. You canonly catch it in diamond or pearl.
Rare Pokemon come randomly when you're in the grass or cave.
you cannot catch lugia in ruby/sapphire/... you have to trade from fireRed, and leaf green. to get lugia you have to go to navel rock either in emerald, fire red, and leaf green
You cannot trade Pokemon to Pokemon Colosseum, but you can trade the Lugia you catch to Ruby or Sapphire.
You have to hack to get to Navel Rock. There you can catch Ho-oh and Lugia.
you have to have action replay
You can't.
You can find lugia in navel rock
No but you can get Lugia in Pokemon Xd just trade it to a GBA Pokemon version like Ruby then trade it to colosseum.
Only with action replay
you cant catch a man in Pokemon ruby
wel u can get a cheating device, trade but not normallyYou can't