Is there a code for Pokemon HeartGold (NA version) for the event Jirachi, to unlock the PokeWalker route? I didn't see one, and nothing pulled up when I searched for it (although I may have searched using the wrong parameters).
Actually, codes for all the UNIQUE unlockable routes (ones that are promos or require special events to unlock) would be awesome. I only have the Pikachu road.