2K Games have just released the next instalment in their Heavy Hitters series of trailers for Bioshock Infinite. Today’s video features the mystical Siren enemy, which plays a supportive role on the battlefield, much like the Boys of Silence. The ghostlike Siren will appear from thin air, and then use her voice to resurrect Booker’s defeated enemies, sending them after him once more. Ken Levine describes the choice that players will have to make, whether to focus on taking out the Siren (which will also knock out the resurrected enemies), or to simply re-kill the enemies that are now shooting at them. The Siren is apparently a nod to society’s increasing interest in the spiritual world at the beginning of the 20th century. Check out the trailer below:

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Bioshock Infinite is scheduled for worldwide release for PC, PlayStation 3 and Xbox 360 on the 19th of October.