The only way to change your ID is starting a new game.
You google for the id and then go on the thingy where you select the game, and you click add new game and follow the directions.
What ID do you want and I will send you an AR code.
A bunch of sites have game id's but once you put them in it takes forever to actually put codes for that game in
wright down the game id (the black numbers at the top when you put it in) and click add new game type in primemetroid or what ever it is and type the game id in.
you click "add new game" then you need to put in the name of the game, and it's ID. soul silver ID is: IPKE-4DFFBF91
you are gonna die
at the top of your action replay game list is a add new game option it tells you the game id of the game insterted in your action replay at the first screen
it will say you have no game inserted and you will be able to type in the code at the bottom of the ds game. NOT THE DS! the GAME!
the action replay for the gameboy you mean? well you put in the name of the game then it should just ask for the ID
you can see the ID when you put the game in to your AR
You put the game name on and then put the game Id
you should insert the game you want to enter and then write down the id code then you put the action replay back into the ds and at the top it says 'add new game' select it, then type in the name of the game and then the id number. that's what i do