The game is sublime, an optimization lesson that other developers and students should follow. Better than a lot of PC games, Guerilla, publisher mastery completely game design. The introductory scenes in the early missions are breathtaking, you arrive hovering, boat, cable car, etc. The effects of lights, particle and shader on the floor, thinking everything is great. Even the explanatory cinematic wire are really well done. Gameplay side is nervous, you come across ambushes phases, infiltration, hacking, vehicles leave bosses. It explores interior decors destroyed half futiristique vessels, with outdoor gardens, the design is sublime. The use of touch is very well thought, between the change of weapon, use of agility and QTE (Quick Time Events in the fighting in melee), one can buy a primary weapon, secondary, and armor agility. It is also one of the few PSVITA game with a multi, we find players easily, there are a lot of map.
The only problem for PC gamers is that playing a FPS the early hours with a similar it is very difficult, I will not take off points for that because it is a portable console and analog the console is much better than the PSP can hardly do better.