How do you get a photon man in Age of Empires 3?

In Age of Empires III, to unlock the Photon Man, you need to ensure that you have the "The WarChiefs" expansion installed. Then, you can obtain him by entering the cheat code "photon man" during gameplay. This will spawn the Photon Man, a unique unit with powerful abilities. Remember that using cheats disables achievements for that session.