Yeah, it's a Nintendo 3DS game called "Rhythm Thief R : Emperor Napoleon's Legacy" which is gonna be released in winter.
I'm screaming like a fangirl when watching SEGA Tokyo Game Show this afternoon, the song they reused is don't cry anymore, chAngE, 441 and OTOSHIMONO, but according to
this article, I am very surprised to know that miwa gonna write the theme song for A GAME d(>__<)b