- 1). Put your copy of "Pokemon Platinum" into your Action Replay. Insert the Action Replay into the your Nintendo DS and turn on the console.
- 2). Scroll through the list of codes for "Pokemon Platinum" and see if you already have the Wild Pokemon Modifier code. If you do, skip to step six. If not, continue on to add it.
- 3). Press the wrench icon and choose "Add New Code." Name the code "Wild Pokemon Modifier" when prompted and press "Next."
- 4). Enter the following:
94000130 FDFF0000
94000130 FDFF0000
B2101D40 00000000
D9000000 00111D10
C0000000 0000000C
DC000000 00000004
D6000000 000233E8
D1000000 00000000
C0000000 0000000A
D6000000 000233E8
D2000000 00000000
94000130 FEFF0000
B2101D40 00000000
D9000000 00111D10
C0000000 0000000C
D6000000 000233E8
DC000000 00000004
D2000000 00000000
94000130 FFFB0000
B2101D40 00000000
DA000000 00111D10
D4000000 00002400
D3000000 00000000
D7000000 0207404C
D2000000 00000000 - 5). Press "Next" and save the code.
- 6). Scroll through the list of codes and press "A" to select the Wild Pokemon Modifier code.
- 7). Press the button on the lower screen that says "Start" to resume your game of "Pokemon Platinum," and head to any patch of tall grass.
- 8). Open up the calculator app on your Poketch.
- 9). Enter "249" in the calculator, then press the left shoulder button on your DS. Press "Clear" on the calculator.
- 10
Enter the level at which you would like to catch Lugia, which can be any number from Level 1 to Level 100. Press the right shoulder button, then clear the calculator. - 11
Decide what nature you'd like your Lugia to be. Different natures effect a Pokemon's stat growth, giving it bonuses and handicaps in various areas. Pick the nature you'd like, enter the corresponding number on the calculator and press "Select." - 12
Enter the tall grass. The first wild Pokemon you encounter should be a Lugia of the level and nature you selected via the calculator. Weaken it or put it to sleep, then use a Pokeball to capture it.
Source...