Think this deserves its own thread, a poster from gamefaqs played the demo on E3 and posted his impressions
http://www.gamefaqs.com/boards/693331-dark-souls-ii/66425785
-The gameplay demo had a sorceror run through the previous level we've seen but he made those turtle knights break a wall to create a secret room with a bonfire that let him warp.
-The smoke covering the bonfire seen in new trailer is warping animation
-The Mirror Knight is a very tough boss who can deflect magic with the shield and can summon help. PR guy said it was just AI for the demo which must mean it's meant to be other players ala Old Monk. Seems it can summon multiple players if you dillydally long enough.
He summons a player really quickly. Like 5 seconds from start to finish. (has to be fast since he's vulnerable while doing it)
-.Your character and the enemies seem slightly larger than in DkS
-Jump has been moved to L3(PS3)
-The BS animation was a bunch of slashes and you supposedly do not have as much invincibility while you are in the animation.
-Sliding down ladders is now a jump down but you suffer damage. You can both jump down from ladders and slide down
-Much more colorful than the trailers
-Magic shown was pretty much the same but one spell had arrows rain down from above
-3 weapons per hand was confirmed
-This character had some different herbs, Amber and Twilight. These could be used while in green blossom buff and they didn't seem to do anything.
-Some dual wielding info. Pressing triangle puts you in a new stance where your left hand weapon is raised. From there you can do L1 L1 L2 combos.
-For magic, L2 does slower but more powerful version of the spell
-Dark magic is present, the spell caster enemy before the mirror knight used something very similar to Dark Orb.
-When a Halberd character did a backstab, it like lifted up the mob and slammed it down into the ground. Looks like a lot more variety with the backstabs this time.