With E3 just days away, Sony has released the first official gameplay footage from their upcoming blockbuster Killzone 3. The sequel to one of the best looking games of all time is showcasing some big new features in its latest trailer, most notability: new snow covered environments, new jet packs and a new melee system that allows for eye stabbing and neck snapping. Sony must still have a couple big tricks up their sleeve for E3 if they’re releasing trailers like this just days before the event.