The PSP games you have to own

Killzone Liberation
By Sony | Out TBA

Liberation may be set immediately after the PS2 version of Killzone and cast you once again as Templar, but beyond that it's allnew for thePSP. The view's third person, for a start, specifically to play to the strengths the handheld has over a TV. The result is a more stealth-oriented experience themed around a covert(ish) mission against General Metrac.

It's unveiling a whole new slant on an underratedPS2 shootinator.