I downloaded this demo also.
It was a fun play for free. But......if they are trying to get you to buy this game, they should
cut out the introductory section at the very beginning. Right off the bat it shows you the framerate
problems when it starts skipping/jerking/dropping frames in the introductory sequence.
I thought for a second that it was my box acting up, until I head about the problems this game had.
Good for free