We got one gameplay demo for The Last of Us back during E3 (shotgun to the face!), but did you know that the press was shown an extended version of that same demo? It’s true, it shows the same area as the demo video that was publicly released, but takes a different approach to it; even resulting in a different situation.
The extended demo is 15 mins long, so you might want to put that time to the side before watching it. It’s worth it.