I have a minor complaint though: while everything was very solid, there seemed to be a lack of interaction with objects like explosive barrels. Maybe I wasn't trying hard enough, but I simply couldn't get them to move. I'd like to have pushed one particular explosive barrel down a cliff, for instance, but couldn't. Maybe I was doing it wrong?
Yes, in terms of actual physics there isn't as much of it as in say Heavenly Sword it seems ... mostly restricted to the bodies, not that many other objects to interact with.
Also, I was a bit surprised about the opening movie. It turns out you can skip it but unlike HS you're placed immediately in-game. I had initially thought the opening movie was used in the same way HS's demo used it (keeping the user occupied as data was loaded), but evidently it was not.
Well, this demo is on the harddrive. We'll have to wait and see how it turns out in the real game. That said, they talked about their extensive use of BluRay streaming and the HDD combined to make loadtimes almost non-existent, and it will be interesting to see how far they got with that.