First you need a power supply (batteries or the right voltage AC adapter. You may have a couple AC adapters around the house you could try but AA batteries are easier to come by.) The black box that says Sega Genesis is where you either plug in your adapter or put your batteries in. Then you take the RCA cables (white and yellow or video and audio) and hook them up to the back of your TV. Don't forget to put your TV on the right channel! Then you simply push the grey power button on the black box, grab your blue remote controller and pick a game!