Zero Escape: Virtue's Last Reward is now available for the PlayStation Vita. If you don't recall, Virtue's Last Reward is the sequel to 999: 9 Hours, 9 Persons, 9 Doors, which was released on the DS in 2010. The game is a visual novel with some point-and-click puzzle elements, all revolving around a sinister game of death (is there any other kind?).
You can grab the demo now on PSN.