All together now, ↑↑↓↓←→←→BA ! The Konami Code is the best known cheat code in gaming, probably because of its long history and widespread use. It's easy to remember and useful across platforms. It's found in surprising places for surprising uses, even outside of games.
Norman Caruso, the Gaming Historian, fills us in on the history and popularity of the Konami Code so you will feel as knowledgable as an old school gamer. He also goes through the games you might use the code in, in case you don't already know. You'll also learn how it unlocks easter eggs on some websites. It's an all-purpose shortcut! -via Digg