You know that man in jubilife city where you can dress up your pokemon? talk to him. when he ask you what pokemon you want to dress up, don't click anything!! if you're in the front of him, go either left or right. if you're on the right (near the picture of you're latest pokemon you dressed up) go up i think (do the same with left) and then choose your pokemon. when you go in it's like you're walking through the wall. no code or anything!!!!