Far Cry: Instincts is a special version of the first-person shooter for the Xbox game console. You will again have to return to the tropical island in the person of former special forces soldier Jack Carver. Opposing him is the evil and mad scientist Krieger, who conducts his experiments on the local islands. As the plot progresses, Jack is injected with a special serum that changes his body and allows him to wield powerful weapons, such as a heavy machine gun, and also lead mutants.