Today Koei Tecmo released two free themes on the Japanese PlayStation Store dedicated to both Dead or Alive Xtreme 3 and Hatsune Miku: Project DIVA X.

The themes are for PS4 and PS Vita, and you need a Japanese PSN account to download them (you can access the links only if you're not logged in with a western account, or using an incognito window).

While the PS Vita theme is usable only with your Japanese account, you'll be able to use the PS4 version with any account, provided that your console is set as primary for all of them.

Unfortunately, both themes are static, and have no custom music or icons, but free is free. Check out a few screenshots below.