Ridge Racer, released in Japan as Ridge Racers (リッジレーサーズ?), is an arcade racing video game developed by Namco for the PSP. It is named after the eponymous Ridge Racer video game series to which it belongs. The game was released in Japan on December 12, 2004, in North America on March 22, 2005 and in Europe on September 1, 2005 as a lanuch title. A sequel titled Ridge Racer 2 has also been released for the PSP. Available in the game is a fully playable version of the Namco arcade game New Rally-X.