thats not true at all
almost none of them mess up your game
and ar software doesnt work with vista
forget u most shiny codes and rebattle codes mess up your game(even if u do one thing wrong ) ar is so dangerous i only put mine in my ds when im putting in a code. after the code is in, i save and take it out and put pearl back in. you know what?
no, its not one for that, i dont think. but il trade u one though