Shadow Lugia? I think you mean SHINY Lugia, which is the only "shadow" version of Lugia available in the handhelds.
It's very rare to catch one, around 1 in 8000 for it to pop up in battle instead of normal Lugia - considering it's a one time battle, that makes it even rarer.
You cannot get a Shadow / Dark Lugia outside of Pokemon XD: Gale of Darkness!
Shadow Lugia is not in HeartGold.
you can catch lugia in whil islands in heartgold
Lugia its easier.
You can only catch lugia if you migrated it from firered or leafgreen. If you want lugia get one from heartgold or soulsilver version.
That's only in Pokemon XD
There is no such thing as the Shadow Luiga. To catch the Shiny Lugia though, you need to find the code.
You can catch Lugia in the gameboy games: Gold and Silver and in the Nintendo DS games: HeartGold and SoulSilver.
yes but it is in pewter city
You cant get a shadow Lugia in any game except for the game cube Pokemon game Pokemon XD Gale of Darkness. Shadow Pokemon are not really real, they are fake.
you catch lugia by going in the underground tunnel in cianwood. You could use a ultra ball or dusk ball. but you have to put it to sleep
You can capture Lugia in FireRed, LeafGreen, Emerald, Gold, Silver, Crystal, HeartGold, and SoulSilver.
You don't catch it. Trade it from XD: Gale of Darkness. It's a give-away, practically...The main shadow PKMN is Shadow lugia!