The Bulletstorm tweeting-thing announced that People Can Fly’s free Call Of Duty parody, Duty Calls, has been download 1.25 million times over the weekend. The brief game, which mocks the “realistic” shooter genre, was an advert for Bulletstorm’s more science fictional approach on the macho manshoot. And, well, it was actually pretty funny. As adverts go, it was one of the more inventive ones we’ve seen. A kind of anti-demo. “Bulletstorm is not this,” being the message. It also, perhaps, goes some small way toward making up for the lack of an actual demo. Well, they say laughter is the best medicine. We’ll see about that.