photo credit: Pixel FantasyThe Konami code is a cheat-code which is used in many Konami games like Contra. It involves pressing the following series of keys-up up down down left right left right B A as depicted in the adjacent picture. Konami code is very popular on the web these days. It works on many sites like Facebook, Digg, Google Reader, ESPN, GameSpot and many more popular sites. So go ahead and try it out on different sites and discover new sites that use the konami code. For a long list of sites that use the Konami Code, visit Konami Code Sites. You will need to perform the Konami Code on that website as well. So keep trying, you never know which site might support the Konami Code.
So remember the Konami code is-
Some sites use variations with the Konami code. On Facebook you need to press enter after entering the Konami code to see the special effects. Here's a video that shows how the Konami code works on Facebook.
Finally, if you haven't tried this on Konami games, you need to get hold of a gaming console or use some kind of emulation to try the Konami code with ancient games. The Konami code also works with a few newer games.