Perfect Dark

This is difficult to do. If you can disarm Trent before he shoots you, shoots the president, or runs away, you will use his own custom built DY357-LX.

Go to Elvis before completing any objectives. He will hand over a mine to you.

Play the level under the Agent difficulty setting. Note: In the Air Force One level, make the jet bike go into the hole it goes to be dropped off at the next level, which should speed you up. Start the level and find the jetbike quickly. Get on the jetbike and go to where you sound the distress beacon, killing the two guards on the way. Take their Avengers and sound the distress beacon. Then, take a path to where you snipe the Presidential Clone. When you get there, there will be many guards in your way. Snipe the clone and get of your bike. After that, find a big path that should lead you to where Trent and the President are located. Blow up the sentries and quickly disarm Trent before he shoots the President. The gun you took is Trent's Golden Magnum. It will help you kill the many guards that will be on your trail. Then, take the path out of the cavern to Elvis' ship, killing guards on the way if they shoot at you.

Shoot an opponent once, anywhere except in the heart.

Begin the level under the "Perfect Agent" difficulty setting. When the person that logs in the computer with the files comes out, let him "escape" for awhile. He will eventually lead you to a room with the gun. Its secondary function will be useful at the first floor.

You will need Cassandra's keycard to get this gun. Get in her office and pick up the grenade. Throw it (or any other explosives, if you have any) in one of the right corners in the room. One of the walls there will have a hole in it. Look inside to find the gun. The wall that will blow up is the one with a man carved in it.

The best way to get this hidden gun is with cloaking. Take out the first five troops (do not worry about the ones at the stairs) with head shots. Do not miss, or they will know that you are there. If you pull it off, the fifth one behind the couch will have the magnum.

On the second level of the solo missions, there is a secret item called a "Shield Tech Item". To get it, go to the room with the troopers (before the hall with the sentry turrets). Look around the room. There will be a smaller restricted door. Go inside and continue until you reach the end. You will se a wall like the one Dr. Caroll was in. Walk through it when it opens, and the item will be on the table. The shield will help you get past the turrets in that hallway if you have low life.

The best way to get your hands on these is to use a cloaking device, since you need to be stealthy. Shoot the first guard without being seen. Let the yellow robot take you in and shoot the glass to drop down. Blast the next two guards, and do not give them a chance to notice you. If you do it all undetected, a computer down there will open the white weapon compartment.

Enable the "Invisibility" cheat and sneak up behind a guard sitting at a desk. Plant a Remote Mine on the base of his chair. Walk away from the guard and detonate the mine. The guard will be launched many feet into the air, and possibly through the roof.