People Can Fly’s parody shooter Duty Calls has proved as popular as some real shooters, racking up over a million downloads since its release last week.
Jump on the bandwagon with your own download here.
People Can Fly also took a gentle jab at Halo with one of their trailers.
Bulletstorm is due for release on PC, PlayStation 3 and Xbox 360 on February 22 in the US and Australia, and February 25 in the UK and Europe.
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