Unit 13 is a third-person shooter video game for the PlayStation Vita. This is the last game to be developed by Zipper Interactive before the studio's closure. It was released on March 6, 2012 in North America, March 7 in Europe and March 8 in Japan.A demo version was released for download of the PlayStation Network. It features the opening tutorial mission where players learn the controls and how to otherwise play the game, as well as the complete first mission, named 'Operation Open Flame'. The demo also provides a leaderboard for this mission, both regional and global, as well as being able to play this mission in "Dynamic" Mode. However, Dynamic mode does not support leaderboard ranking, as the mission has random insertions and objectives.