ega surprised everyone last year with the announcement and subsequent release of Hatsune Miku: Project Diva F for the PlayStation 3 and as a downloadable title on the Vita. The Project Diva games should have been about as obscure as it came in the west, since the whole game revolves around the personification of a music creation suite called Vocaloid. Created by Crypton, Vocaloid allows its users to generate lyrics which are sung with the voice of the specific version you buy, and Hatsune Miku, though not the first, is far and away the most popular of the entire line, worldwide.
If you thought a quirky rhythm-music game based on a group of virtual singers with dress-up elements and theatre modes wouldn't fly, two things should be remembered; firstly, Hatsune Miku has wild, live freaking concerts in Japan (seriously!) and secondly, Project Diva F was a mad, runaway hit in North America, selling out in many, many places at retail, especially in the part of the world where I live.