You use a GameBoy DS Action Replay. That is the only way. I believe you might be able to do so by winning the lottery 998 times, but...Good luck with that. Hope this helps. The Scarred Angel

Basically, every day when you start Ruby (as long as it isn't on an emulator) it generates a random five digit number between 1 and...65535 I believe. If these numbers match any of the Pokemon ID numbers in your party (this includes Pokemon gotten in trades). If you get all five numbers matching, you get … Read more