Hatsune Miku: Project DIVA 2nd (初音ミク -Project DIVA 2nd-?) is a 2010 rhythm game created by Sega and Crypton Future Media for thePlayStation Portable. The game is a sequel to the 2009 video game, Hatsune Miku: Project DIVA, and was first released on July 29, 2010 in Japan with no international release. 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. In addition, similar to the first Dreamy Theater, a companion game Hatsune Miku: Project DIVA Dreamy Theater 2nd that allows players to play the game on the PlayStation 3 with improved visuals.