I remember my copy of Pokemon Blue at one point stopped saving completely, and I'm trying to revive it. Every time I turn it on, it just says "new game" or sometimes "save data corrupted." I remember I used to gameshark the hell out of the thing, and I was wondering if that might have anything to do with it, if it's reparable, if it might be that the battery's dead?

I honestly have no idea. Can anyone shed some light on this?