I've briefly confirmed that it works when plugged in with the power cable. The main unit cannot be charged. Some buttons need to be pressed a little harder, but all of them function. There are scratches and dirt on the main unit, and the sticks are sticky. I have confirmed that all the software can be launched. I have not tested it for extended periods of play. There is an issue with inserting and removing the software cartridges. Sometimes the cartridge gets stuck, sometimes it doesn't, and it can get caught, requiring you to pull it out with your finger. No stylus is included. An SD card is included. There may be other oversights, so please only purchase if you understand. Some of the software has names written on them, which will be blacked out.