So I'm playing Reality Fighters and Uncharted games for the PSVita. First let's start with Reality Fighters, then Uncharted.
Spoiler: Reality Fighters (click to see content)
My expectations were really low for Reality Fighters, because it's the first game for PSVita, that came free with it, and developed by a company that has never done a fighting game, as far as I remember. I must say, though, that it wasn't as bad as I though.
I really like the customization system, though it could have more body options apart from making your fighter slim/fat or making it muscular. The face thing was a little pain in the ass to make it work, but the result was hilarious. There's also a lot of fighting styles, some normal and some weird like ballet. So far I tested Boxer and I guess it's okay. It also has supers, one lvl1 and one lvl2. They're okay for the boxer, but power is obtained way too fast IMO.
What kills the game a lot is the camera controls. It's so hard to control the camera as it moves with the PSVita, that sometimes I wish I could just make it not move at all, since it forces me to not move it at all. I really wish there was an option for that. I still have to test if the different fighting styles are balanced, as you have to unlock the majority of them by paying stars that you get by fighting. It also has that stupid Online code system that you have to input in PSStore, that I hope they stop using, but IMO, you should grab this game as the free option if you buy the PSVita.
Spoiler: Uncharted (click to see content)
Now for Uncharted, it's your typical Uncharted game. Though I have to say, I cannot like it as much as the previous ones. The effects of some things like the explosions are terrible. The girl that accompanies you is irritating, and sometimes I made sure she's killed because that's the only way I can continue this game without hating it. The worst part is that the game is interrupted a lot by several minigames that uses all functions of the PSVita, which completely stops the flow of this game. Really, you're trying to run away from a place, then suddenly the game is interrupted because the main character has found a torn piece of paper and you have to assemble that stupid thing, by using the touch screen, which takes some time. The checkpoints are also weird sometimes, making me feel some places should have them while others shouldn't have them.
Honestly, I would suggest you to grab another game as the first PSVita game you'll pay, like Rayman Origins or BB:CSE. It wasn't a good Uncharted game. The story is also weak IMO. Really, there's better options than this one right now.
That's my opinion after playing for some time. Haven't beaten them yet.