Sony's Phil Harrison has been praising the high standard strived for with Killzone 2, Harrison commented that the respective title highlights the technical capability of the platform as well as the talent that developer Guerrilla Games has in its ranks. Further to this, Guerrilla games supported the use of the Blu-ray format by saing the game could not have been produced with so much visual detail without its high capacity.

Harrison said that Killzone 2 conveyed "the technical capability of the platform and the creative capability of the platform", and paid tribute to developer Guerrilla Games' "incredible skill and talent".

Killzone 2 would, he said, "deliver their original vision" when it launched exclusively on PlayStation 3. "For many reasons, it's an important product for us," he concluded.

The game, whose first in-game screenshot generated enormous interest when it was unveiled today, casts the player into a non-stop war against the semi-human Helghast, with Guerrilla telling journalists that the demo shown on Tuesday evening drew upon virtually all of the PS3's many important capabilities - including Blu-ray discs, which it said were necessary for the game to offer visual detail in depth.