Guacamelee is a must get. LOVED it and it is a cross buy.
Oddworld: Stranger's Wrath is nice if you didn't play on Xbox or PS3.
Soul Sacrifice is a great game, more so for the multiplayer.
Dragon's Crown is a fine game and better on Vita in my view.
If you like Sly and don't have a PS3 you can get Sly TiT
Gravity Rush
LBP Vita I hear is the best, so I intend to get it soon.
If you like unconventional games Sound Shapes is a good game (cross buy too)
Plenty others, but I am sure people will inform you here.
Also Rayman Origins is great on any platform, and Legends seems to be a great addition on the Vita, so you can get both Rayman games there, plus the older ones.
Playstation = The Beast from the East
Sony + Nintendo = WIN! PS3 + PSV + PS4 + Wii U + 3DS
