DJMax Portable Black Square is a music game for the PlayStation Portable developed by South Korean developer Pentavision released on December 24, 2008. This is the fourth major game of the DJMax series released for the PSP. The game includes various enhancements and new features built on from DJMax Portable 2 and DJMax Portable Clazziquai Edition. The original aim was to launch the game in November, however due to numerous bugs or piracy issues with DJMax Portable Clazziquai Edition, the release...
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