Hatsune Miku: Project DIVA 2nd

'Hatsune Miku: Project DIVA 2nd' (初音ミク Project DIVA 2nd) is a rhythm video game created by Sega and Crypton Future Media for the PlayStation Portable. The game is a sequel to the 2009 video game, 'Hatsune Miku: Project DIVA', and was first released on July 29, 2010 exclusively in Japan. Like the original, the game primarily makes use of Vocaloids, a series of singing synthesizer software, and the songs created using these vocaloids most notably the virtual-diva Vocaloid Hatsune Miku.

A total of 72 songs are available in the game; 52 songs (30 new and 22 old) are obtained normally by playing through the game, while 9 songs are only available through Edit Mode, and 11 songs are downloadable content available from the PlayStation Network.

(Source of Description - Wikipedia; 'Hatsune Miku: Project DIVA 2nd')