As the Dark Souls trailer warned us: "Prepare to die..." They really weren't kidding:
not only is the game more difficult, but it requires deep thinking to solve the toughest of obstacles. When we had met with the producers, they were desperately waiting for someone to beat the fiery dragon at the end of the demo.
They had a big bell that people were allowed to ring if they managed to get past it. Our appointment was toward the end of the show on the first day, and at that point nobody had been able to do it, and while at the show, we didn't hear any bells while in the hall Namco Bandai was in. 
That speaks volumes for the type of game Dark Souls will be. Will you be able to have an achievement so grand it makes you want to celebrate it by ringing a bell for all to hear? Find out on October 4th!