Things You'll Need
Instructions
Connect your Action Replay to your computer using the provided USB Cord, and open the Code Manager software that came with the device.
Enter the Breeder Code into your Action Replay's Code Manager:
921ED3D0 00000E00
94000130 FEFF0000
121ED3D2 00004280
121ED3EE 000042A5
D2000000 00000000
Disconnect your Action Replay from your computer, and remove the cord from your Action Replay.
Plug your Action Replay into your Nintendo DS, and insert the game into the game slot on the Action Replay. When you turn your Nintendo DS on, the Action Replay menu will appear. From this menu you can turn cheat codes on and off. Any codes entered into the Code Manager will be automatically on. Press the star shaped button on the screen to start the game.
Go to one of the Pokemon Day Care Centers, the locations of which vary from game to game.
Speak to the Old Man in the Day Care Center, and he will explain how to breed Pokemon. You will have to leave Lugia and any female Pokemon at the Day Care Center.
Exit the Day Care Center, take a single step and then press the "R" button. Reenter the Day Care Center to reclaim your breeding Pokemon and pick up your new Lugia egg, which will hatch instantly upon putting it in your inventory.