I'm going on vacation in 2 weeks for a week, and next week, I'm going to buy a game for the PS Vita, but I don't know what game. I have Uncharted and MGS for Vita, but what other games do you all recommend me?

Thanks in advance

I played COD on Vita at a friends, it's good for a handheld title, I didn't play AC 3 Liberation though. I chose to buy Unit 13.