After quite a long break, demos are back and today no less than two big upcoming titles are yours to try. We will start with The Darkness II, a sequel which won't disappoint those in need for gory violence. Here are the first 10 minutes of the 360 demo which was released earlier today, captured in the highest difficulty setting and without any HUD. Two more videos will follow as soon as possible. Update 2: Part 3 added.