Kadokawa Games is developing Durarara!! 3way Standoff: Alley V as a 10th anniversary project for the anime series. If the title sounds familiar you may remember when Alley was released for PSP back in 2011. Alley V is an enhanced version for PlayStation Vita with mini games like Rhythm Perestroika and PuzzDura (a pun on Puzzle & Dragons which often abbreviated as PuzzDra in Japan).
Durarara!! 3way Standoff: Alley V has double the scenario size of the PSP game and that includes three brand new what if routes. All event scenes have full voice acting too. Dengeki Online has screenshots of the Vita version and we made a quick comparison.
Durarara!! 3way Standoff: Alley V for Vita on the left and the PSP version is on the right.
Durarara!! 3way Standoff: Alley V is slated for release in Japan on June 19.