Army of Two: The 40th Day for the PSP is a top-down shooter emphasizing two-player cooperative action. The game’s narrative is the same as in the console version. You can play the game with an artificial intelligence companion or with a human friend using the PSP’s wireless connection.
Most of the game’s features have been ported over, including the moral decisions, two-player tactics, weapon upgrades, and unlocks available in the console version.