Since I hacked it, my New3DS tends to get warm to the touch by the backplate when playing with it for about 20 minutes, specially when playing Metal Gear Solid 3D. Although it doesn't always get warm on the same area; it is mainly next to the MicroSD card, sometimes on the MicroSD card reader and very rarely on the battery. It doesn't get too hot to the point that it's annoying, but it gets warm. Is this normal?