The UK website Jolt.co.uk reviews Killzone 2 and gives it 96/100.
"Killzone 2 does not exude a brave ambition that seeks to lead the first-person shooter genre in a revolutionary new direction; it's obvious from the outset that Guerrilla Games never intended for its sequel to reinvent the FPS wheel.
However, considering the worth of a lengthy campaign offering genuine challenge, thrilling local multiplayer with A.I. bots, and a layered online multiplayer component that's likely to be PSN's main point of attraction for the foreseeable future, it's clear Killzone 2 has taken the ever-so popular wheel, slapped a gorgeous chrome rim on it, drastically reduced its tyre profile, and applied a sense of balance never before felt on a wheel. Why then would anyone want to reinvent the wheel when the damn wheel never looked so good or rolled so well?"