Wall Running

So i was playing the demo recently and i realized that there is no wall running in the demo. In multiple gameplay videos that were released before the demo it displays raiden running along walls to avoid gunfire and other misc stuff, yet in the demo this ability is strangely absent. i was wondering is this intentional and they are taking out the ability completely, or is there a possibility of earning this ability later on in the actual game with a upgrade of some sort.