Perfect Dark

Find a guard then take any and all ammunition, guns, or any other weapon you can find around you and him, so that he cannot roll around and pick them up. Become unarmed and enter disarm mode. Press Z to take his gun. He will stand there with his hands in the air and say similar to , "I don't like this anymore", or "I give up, don't hurt me". Note: You cannot take them as hostages. Basically what this does is makes them worthless. Even if other guards are around, they will not fight anymore.

While in any of the dataDyne missions, either from the roof or from a broken window (windows can be shot out), aim for the passing vehicles and blow them up.

The dataDyne symbol appears to be missing a piece. Look at the symbol for the Carrington Institute -- it is the missing piece. Each of the four pieces of the dataDyne Symbol corresponds to a person -- . Mr. Blonde, Cassandra De Vries, Trent Easton, and finally Daniel Carrington.

To defeat Cassandra and the woman in the red, knock both of then out by switching your unarmed attack from punch to disarm. Then, exit the level. This can be done under any difficulty setting.

Start the level and go to where the cheese is located. Go down there and shoot a rocket (or grenade) at the opposite wall from the ladder. A hole will appear, leading to Cassandra's office.

When in the hallway of the office area, walk up to one of the windows. Shatter the window and you will see flying ships outside at a distance. Take out any gun, and aim carefully. If you manage to hit a ship, you can take it down with a single shot and make it explode in mid-air.

When you are on top of the building, first kill the guards that are on the lower level of the roof. Once that is done, lean over the edge and shoot at the cars. One or two bullets will make the car explode. Note: Enable the "Unlimited ammo" or other of gun cheats to avoid wasting ammunition.

Throw a mine (preferably a proximity or time mine as they automatically go off) on an opponent. The mine will stick on them, and in a few seconds, blow them up for an easy kill.

One of the cloaked guards behind the first four doors will drop the mines if you can kill him before Elvis does. However, under the "Perfect Agent" setting, you will get them no matter who hits him.

Get to the point in co-op mode where you see Dr. Carrol. Have player one stay behind while aiming the Far Sight. The player one screen will be in X-ray aiming mode. Have player two go into the room and while the intermission scene is playing. The cut scene will then be in X-ray mode.