Killzone.

The buzz: Killzone has just about broken the buzz-o-meter--Sony's maiden voyage into the realm of PS2 first-person shooters earned the nickname "Halo killer" immediately after being announced in 2003. Will it actually spell doom for Microsoft's killer app? Probably not, especially with the unstoppable juggernaut that is Halo 2 landing mere weeks after Killzone's launch...but expect it to rule the PS2 shooter market with an iron fist.

On paper, Killzone's stats impress--11 gargantuan levels (each with three distinct subsections), 26 weapons (most of which feature creative alternate firing modes), and 16-player online multiplayer combat. A suitably epic story line …