All you do is see if one of your friends has a secret base(2 miz records with him\her.(3 Go find their base that was on their game in the same spot. Their base will show up on your game.You can go in their base and battle them.This truly works!!!! I do it all the time.If you have questions or if it is not working you can pm me. P.S. You dont have to have a gameshark or action replay. P.S(2)You find it in every pokemon center upstairs talk to the lady you will have to have a 2 player wire or a 2 player wireless.