Mega Man Battle Network 6: Cybeast Gregar
This pre-owned product has been carefully tested, and is guaranteed to work. If you are not completely satisfied, simply return the product within 7 days for your money back. Product may not include original box and instruction manual. Item pictured may not be exact item received.
First of all, props to you for getting your niece this fine as heck game. Second, while I haven't spent as much time as i should've (in terms of actual play hours) with my copy, the save I've had for about 6 months is still holding out. No worries on save quality here. Also you can call customer support if you got issues. Chances are they either send a working replacement or get you a refund