Use the following tactics when fighting the army of Metal Gear RAYs:

Do not focus on only one RAY at a time. You may kill it quickly, but then the other two will be in the arena with full health and become much harder to kill. It is better to divide attacks up evenly between the first three on the outside, so when they all come in they will be almost dead.

Do not worry about running out of ammunition. As long as you constantly run from missile attacks, you will pick up ammo boxes with ten missiles in each. Also, this is the last battle that the stinger is required, so you do not need to save any.

As you may see throughout the battle, usually when you use a ration another appears in the middle. Do not rely on this for the entire battle. Only about three or four will appear, and then no more.

Do not take chances at the beginning of the battle. You will use up most, of if not all, the rations given to you and towards at the end you will be in some trouble. If you have less than full health, a lot of rations, or want to live dangerously at the end of the battle, take every shot you get.

If you get hit with a missile there will probably be one or two more about to hit you, depending on where they were launched. You have probably noticed that the last one or two will not do damage. However, if two RAYs launch missiles near the same time, if you get hit by the first set you should stay on the ground and the second set also will not hurt you.

When a RAY is using its machine gun and covering its face, if you are fast or have time to shoot one of its knees, the attack will stop and he will be down for a few seconds for a good head shot.

If a RAY is doing its strange roar (where he opens his mouth and blue light comes out), shoot a missile up his mouth. It will do more damage than a normal attack, up to almost half of his health will be taken away. Note: This does not refer to the blue laser attack he does when you are near -- it is the thing that he cannot hurt you with.

Immediately when the battle starts, shoot a missile at the middle RAY, then the one on the right, then on the left. The middle and right RAYs will use their machine guns, but the left one will usually still be open for attack. The one on the left should be RAY-RO3E. Try to eliminate this one, then take the other two down. However, damage them all equally.

You only really have to kill four Metal Gears instead of the average six that people kill until it ends. Look for the RAY with the name RAY-ROSE. It is the fifth RAY, and the only one that is not numbered. He will be easier to kill in the background when the fourth RAY is the main man in the center. He may take no longer, but at least he will not shoot the knee-missiles, which are usually the deadliest weapons. Also, RAY 4 will be get confused because when chasing RAY-ROSE you be running around RAY 4. He will not hit you with anything and then RAY 3 or RAY 6 will just shoot the high missiles which usually will not hit a good player. After you kill RAY-ROSE an intermission sequence will begin and you will have completed the hardest part of the game. Note: Make sure you have about an hour of free time for the intermission to view it all.

Shoot Metal Gear RAY in the leg (one of the targets off to the side), then quickly shoot him in the head when you can lock on to him with your Stinger missile. This will take almost half of their energy, making it much easier to defeat him.

Hit his knee, then his head. Hitting his knee will cause him to go down on one knee and scream. When he is on one knee and screaming, fire a Stinger missile into his mouth. That will cause double damage. Note: This combo might be interrupted by another Metal Gear RAY firing missiles at you. -- dodge the missiles and repeat the process.

Throw chaff grenades, stopping them from using all attacks except missiles. Then, equip the Stinger and aim for the knee of one. Hit the knee and the face will open. Quickly aim for the face, allowing you to do the most damage. Afterwards, dodge the incoming missiles. The only time they will have any other attack other than missiles (if you chaff) is when they jump to the center of the ring. Once there, they will use machine guns and try to step on you. Stinger missiles and rations will spawn a few times. Keep repeating this until you have killed all five. If you are having trouble, just kill the one called "Rose", and the battle will end.

When the battle starts, look closely at the lights on the RAYs. You will notice that they are all slightly colored. The health indicator for the RAYs is color coded to match them with the correct color RAY. Select any RAY, and leave the other two alone for the moment. However still try to dodge their attacks. Fight the RAY of your choice until its energy is gone. It will then retreat and return fully charged. Make a note of which color RAY you just fought, then move onto the next color RAY of your choice. Once you fight and defeat one color of RAY you do not need to bring its health meter down again. All you need to do is make sure you get all the color RAYs health meters drained completely. You really only end up fighting three RAYs.

Once you get one of the RAYs on the dance floor with you, there is a technique you can use to fight them. Run straight towards it, avoiding the machine gun and the strange laser from its mouth, and stand directly between its feet. In that position, he cannot shoot you with anything (and neither can the other RAY). All you have to worry about is getting too close to one foot or another (because he will stomp you) or getting kicked when he moves away from you. Just keep running up to him whenever he moves, and nobody can touch you. Use the Stinger to hit him down at your leisure. Aim for the head because nothing else will do any damage.

When you are alone in the arena, fire your Stingers to only one of the RAYs on the outside. It does not matter how you want to do this -- just get his health down until he jumps into the arena with you. You can hear when their missiles are going to land because they make a sound which gets faster as they get closer. Keep moving around to avoid them. Do not get too close or they will use machine guns on you. If this happens, run back and to the side and they will miss. When one of them is in the ring, run straight towards him. He is now an easy opponent. The other two will not attack because they may damage their comrade. If he uses the machine gun, you can run towards him; if you get too close, he will stop. He will not use the side missiles, but if he does they can be avoided by doing a flip (roll if you are Snake). Do the same when he stamps his foot. Your aim here is to get the RAY to use his laser. Run in front of him, quite close. He will turn from side to side for a bit, then shoot at you. Do not be directly in front, as the laser hurts. When he is using the laser, he will not move. This is your chance. He is more vulnerable at this time. Use Stingers on his face, but from the front or it will be blocked by his neck shield. Repeat this for the other RAYs when they enter. Under the normal difficulty setting, a RAY takes four hits while vulnerable before he runs away. Under the very easy difficulty setting, it loses all its life after one shot.

When you start this battle, shoot the RAY in his knee, then the head. Do not waste time with chaff. Once the RAY jumps onto the platform, move close enough so it will use its beam. When he does, flip away making sure you head back at the same time, then fire the Stinger. If needed there should be enough time for the RAY to reposition itself towards you -- during this time you can crouch for health to save rations and get a better score. This will do the same damage as the knee-head combo plus it will save ammunition for a better score.