is a
fighting game with
action RPG elements developed and published by
Square Enix for the
PlayStation Portable as part of the campaign for the
Final Fantasy series' 20th anniversary. It was released in Japan on December 18, 2008, in North America on August 25, 2009, in Australia on September 3, 2009 and in Europe on September 4, 2009. It was then re-released as an
international version in Japan, based on the North American port, as
Dissidia Final Fantasy: Universal Tuning, on November 1, 2009.