Rios and Salem battle through the war-torn streets of Shanghai in Army of Two: The 40th Day for PSP, where split-second tactical decisions and customizable weaponry determine who survives the chaos. Players must utilize the signature Aggro system to outmaneuver enemies and coordinate devastating co-op moves. Iconic locations like the crumbling Shanghai Zoo and besieged skyscrapers set the stage for intense firefights and gripping story twists as the duo fights to escape the city.