This is the most complete and up-to-date Game Genie Code book for the NES Nintendo system. I Have spent hours formatting this book into the most comprehensive and clean code NES Game Genie code list out there. I tried my best to remove many of the glitch, codes that make no sense, and other codes that tend to make the game unbeatable. I did not do this in every instance however as you can still find many "1 LIFE" codes (Just in case there are some hardcore sadist gamers out there) but I hope everyone enjoys the labor of love that went into this compilation of codes for the NES library as I saw the demand to find them all in one place was very high.