Dance Dance Revolution, a.k.a. DDR and Dancing Stage in Europe, is a music video game series produced by Konami. It was first introduced to Japanese video arcades in 1998, after being shown at the Tokyo Game Show earlier that year. Since then, the game has gained significant popularity elsewhere in the world, including large portions of North America, Europe and Australia. As of 2005, over 90 official versions have been produced, including those for home video game consoles.
Wikipedia: link
Other References:
http://www.e-litegames.com/Games/index.php?game=6
http://www.flashflashrevolution.com/
http://www.musicineverydirection.com/
