ah... finally a good question^^
the gameplay remained basically the same. kill people or collect items to get score. the battle system was changed, as well as the score system. the last demo had the problem, that you cant attack during walking, thus those basatards ran away. this has of course been changed. not only does every monster now have three different attack sequences (all activated via the CTRL button, to make them look better), every monster has a walk attack, where the monster attacks during walking. this really lightens up the game, since now you get those people even if they run away.
you can now collect bonus items, hidden items and scare people. also, there are more or less victims, that just stand around being hamrless, like cows for example. if you kill those, you loos points, same if you kill someboddy you should usually scare.
scared people or cars or whatever will, after being scared, not only add points to the score, they will flee in a straight forward direction. if they run into anything, they explode, completely sense free but adding even more score if they kill people when they explode...
basically thats it. i will release a demo before christmas however^^