This system has been tested and works with batteries, no power supply .  All of the games have been tested and some of them come with the manual. The AV cable with no frays or cuts in them. Comes as shown. Please see pictures for exact quality of product that you'll be receiving. There is no battery cover for both the system and the controller.

This is from an estate sale As Is Look at pictures of condition. Email if you have ??! Let me know if you want more pictures