clean your badge!!!
badges can be dirty if you are careless, if you saw some dark blue thingy that can be clean up, if they are very clean, they are shining, and it has the perfect tune if you tap it.
(Tip: how to clean your badges?
Step 1: tap your stick to the badges.
Step 2: after you tap the badge. don't let go, up and down your stick until there clean, they are so shiny when they are clean)
More tricks, tips and cheats for this game are right here - Pokemon Diamond cheats
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