Ok if you have the "newer" 8-bit Nintendo, (if not get one there awesome!) And you want to use the game genie.....you cant. As the story goes the NES 101 (top loader) was made way after the game genie was invented. And as a either design over sight or with purposeful miscalculation (Nintendo didn't really like the game genie). A game genie will NOT fit into the top loading NES. Now this was realized this and sold a adapter to use the game genie , it was free if you asked for it, now they are very very rare. And one is now being sold on ebay for more then a hundred dollars. And i am not going to pay that much to mess around with some Nintendo games. So i for a way to hack the game genie to fit into the top loading Nintendo Entertainment System.