how do you get lugia

The most common answer is migration but if you don't have a gba Pokemon game then you can either get it through trading or cheating

You have to have Pokemon emerald and do the event so you can go to naval rock island. Then you get Lugia and ho-oh.then you migrate the Pokemon you want(lugia) into your Pokemon platinum!!! In the pal park!!!!! :D lol!

The thing about pal park is, it's supposed to be hard to find rare and legendary pokemon

If you have Pokemon XD:Gale Of Darkness, you can catch Shadow Lugia, purify it,trade it to a GBA game, nd migrate it over to your Platinum. It's a little longer nd you need the cord to connect the Gamecube to the Gameboy Advance, but it's easier if you missed the Naval Rock event,don't have an AR,or don't know anyone with Lugia

There are two ways to get Lugia:

First, you could get an Action Replay, and just use the wild Pokemon modifier (this is how I got mine).

Or, you could migrate from a gameboy game. If you missed the event to go to Navel Rock, you could use the teleport code on a Gameshark for Emerald to get there.

how do you get yugia for pokemon platinem?

You cannot get Lugia in Platinum, you must trade or migrate. Migrate from Emerald in the Naval Rock Island.

There's a cheat that gets you Lugia.

You must migrate from Emerald.

You could trade.

You could trade from SoulSilver.

There's a forum on the website for trading.