BioShock is a shooter unlike any you've ever played, loaded with weapons and tactics never seen. You'll have a complete arsenal at your disposal from simple revolvers to grenade launchers and chemical throwers, but you'll also be forced to genetically modify your DNA to create an even more deadly weapon: you. Injectable plasmids give you super human powers: blast electrical currents into water to electrocute multiple enemies, or freeze them solid and obliterate them with the swing of a wrench.
This is of the BioShock logo with the water falling off of it.
What you need to do to use this is download dreamscene for windows, follow the instructions to install windows dreamscenes. next just set this mpeg video as your desktop background.