初音ミク -Project DIVA- / Hatsune Miku: Project DIVA [series]

[empressdonna]

Games in the series:

初音ミク Project DIVA / Hatsune Miku: Project DIVA
初音ミク Project DIVA 2nd/ Hatsune Miku: Project DIVA 2nd
初音ミク Project DIVA 2nd# / Hatsune Miku: Project DIVA 2nd# (cheaper version of above?)
初音ミク Project DIVA Extend / Hatsune Miku: Project DIVA Extend

There is also an arcade game and an upcoming vita game plus dreamy theater and dreamy theater 2nd that you buy and download from the japanese PSN store which allows connectivity between the psp game and the ps3.