Joshua Williams of Gaming Enthusiast: "The hits keep coming for the most hated little-handheld-that-could. With Killzone Mercenary we have by far the most impressive FPS ever to grace a portable and quite a showcase of what time and polish can produce. True, it might’ve taken a while but this is still early in the Vita’s life cycle and we’re already seeing tittles such as KM. What else will we be in for? Before we get too far ahead of ourselves, let’s take a look at a review for Killzone Mercenary."