Army of Two: The 40th Day on the PSP will see a man-made disaster of epic proportions strike Shanghai, China, Rios and Salem find themselves right in the middle of it all. Fortunately for you, you’ve got an arsenal of co-op moves and choices for both players. You’ve got the tools you need to help the Army of Two fight and prevail with an exclusive weapon purchase and upgrade system. Army of Two™: The 40th Day PSP® gives you Intense arcade action with a completely unique Army of Two™ experience. Team up with the AI or a friend in Adhoc co-op and wreak havoc together in co-op action.