If you have an action replay DS, good, if you have ears, better. For this cheat to work, you go on the menu screen on the ARDS on Pokemon Diamond or Pearl and go on walk everywhere. Now go up to the union room, ask the lady if you can go in, and go in, then come out emmediately. Now here's where the walk everywhere part comes in. This time you don't ask the lady and use your walk everywhere cheat to go in the door without permission. The union room should be full of people. Crazy huh? But!! What ever you do, do not talk to any of the people(including the lady) or else your game will freeze. So if you are willing to try it,... PLEASE PLEASE TRY IT!! I HAVE NOTHING TO LIVE FOR!! Nah I'm just kidding, just try it.