Instructions
Insert your "Pokemon Ruby" game cartridge into the cartridge slot on your Action Replay MAX.
Insert the Action Replay MAX into the GBA game slot on your Nintendo DS.
Turn your DS on to open the Action Replay MAX main menu.
Select the "Pokemon Ruby" option in the Action Replay main menu to bring up a checklist of available codes for your game.
Select the "Deoxys" option in the "Pokemon Ruby" code list.
Press the "Start" button to begin playing the game with Deoxys. The Pokemon will appear in your storage PC, which is accessed in any Pokemon Center in the game.