This is an unique sega genesis system. It's one full system that comes with controller, system and 6 games integrateded. Just plug into the TELEVISION and play. Does require 4 AA batteries. It's in wonderful condition. The 6 games are Sonic The Hedgehog, Golden Axe, Flicky, Dr. Robotnik's Mean Bean Machine, Altered Beast, and Kid Chameleon. The video games are integrateded and ONLY PLAYS THOSE GAMES. Purchase this if you want to relive the old days of playing a Sega Genesis! Email me for details. Thanks