First up, Natural Doctrine, which looks like the ugliest PS4 game you've ever seen and an interesting Vita SRPG.
Next, Disgaea 4: A Promise Revisited (Vita's port of Disgaea 4). I feel like the prettier sprites may, finally, get me involved in a Disgaea game for the first time.
Finally, that firefly game, which gets a very long way on an adorable little horned girl and good music.
Thank God for Japanese developers on Vita.
P.S. I'm still playing Dragon's Crown.