Things You'll Need
Instructions
Play the “Pokemon FireRed” or “Pokemon LeafGreen” game on your Game Boy Advance. Go to Island 8 after receiving the Mystery Ticket in the game.
Go into the Naval Rock area and walk up to the Shadow Lugia Pokemon. Use a Super Pokeball to catch the Shadow Lugia, after making it weak with attacks.
Press the “Start” button and then select the “Save” option by pressing the “A” button.
Use the link cable to connect the Game Boy Advance with "FireRed" or "LeafGreen" to another Game Boy Advance with the “Emerald” game in it.
Start the Game Boy Advance with “Emerald” while leaving the other Game Boy Advance on. Go to the nearest Pokemon Center in "Emerald" and walk upstairs.
Go to one of the computers and press the “A” button. Select the “Transfer” option and then select the Shadow Lugia Pokemon that you caught. The Pokemon will then be transferred to your “Pokemon Emerald” game.