Koei Tecmo released their collaboration PlayStation 4 and PlayStation Vita themes featuring Hatsune Miku and Marie Rose. You can now get it for free through the Japanese PlayStation Store.
You can get the PlayStation 4 theme here and the PlayStation Vita theme here. Keep in mind that you’ll need a Japanese PSN account to access and download the free themes.
Dead or Alive Xtreme 3 is currently available for PlayStation 4 and PlayStation Vita. Hatsune Miku: Project Diva X is currently available in Japan for PlayStation Vita and they’re getting the PlayStation 4 version this fall. The Americas will get both versions of the rhythm game in fall 2016.