Cops fight robbers. Soldiers fight terrorists. Good guys fight bad guys. The ISA fights the Helghast. The battle lines always seemed so clear. But if you thought you knew Killzone, you haven't seen the whole story. The interplanetary war rages on, make no mistake — but from an all-new perspective, the boundaries begin to blur, and your alliances begin to change. When there is no good or evil, where will you stand on the battlefield?Killzone: Mercenary brings the futuristic shooter action of the series to the PS Vita for first time — and turns the war you thought you knew completely on its head. Once, you would have died for your cause. But this time, you're a mercenary. This time, you'll fight not only alongside the ISA, but also shoulder-to-shoulder with vicious Helghast troops. Keep your eye on the mission at hand as you take the battlefield from a whole new perspective, and with a new control system on your PS Vita's touch screens. The battle lines have been redrawn. There is no ISA. There is no Helghast. There is only the mission and the money — provided you make it out of the Killzone alive.