The only games that've ever corrupted for me were Pok?mon. If my ACNL corrupted I would.. like just be so upset... mainly just because I'd miss Flora! I got my game cartridge from Gamestop, but it wasn't used, so I guess it wouldn't really be able to have a problem. I prefer having the game on my DS rather than using a cartridge, but at the time it was easier to buy the cartridge for my second town.