you know the emerald cloning glitch that uses the battle tower right? well if you turn the game off during a certain point, you can corrupt the CURRENT game data. what this means is that, since box only saves ONCE, you can get multiple espeegoon eggs on the same file by corrupting the data after saving on box (and then reconnecting and getting another egg). That is how I've gotten 500+ eggs off box by now. There's no harm to your save file either, since emerald carries a backup save file (ie, the previous time you saved).