, sometimes abbreviated DDR X3 or simply X3, is a music video game, and a part of the Dance Dance Revolution series. The arcade version of DDR X3 was revealed by Konami on June 2, 2011. A sequel to Dance Dance Revolution X2, X3 began public beta testing on June 8, 2011. Promotional information for the game reveal the full name for the game, called due to the new "2ndMix" mode in the game. It is released in Japan on November 16, 2011 for dedicated cabinet, November 30, 2011 for upgrade kits, and December 16, 2011 in Asia.