Main Story Walkthrough for Metal Gear Solid (MGS1)
Loading Docks
1 | Go in front of the north elevator. ┗ Get the Ration in the water. |
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2 | Wait for the elevator to come down after the call. |
3 | Get on the elevator. |
- Ration x2
Heliport
1 | Get the Chaff Grenade in the center of the map. ┗ Cut through from the right side to avoid the searchlight. |
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2 | Get the Stun Grenade along the building on the left side of the map. ┗ Stick to the wall to avoid being seen by the surveillance camera. |
3 | Get SOCOM from the truck on the north side. |
4 | Go up using the stairs on the right side of the map. |
5 | Move forward through the duct. |
If you do not have the Suppressor, enemies will be alerted by the sound of the SOCOM’s shots. Avoid using it too often to avoid detection.
- SOCOM
- Stun Grenade
- Chaff Grenade
- Ration
- SOCOM Ammo x2 (only appears when you have obtained the SOCOM)
Tank Hangar Armory
1 | Go through the duct. |
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2 | When you reach the bottom, press 〇 to jump off. |
3 | Get the Thermal Goggles in the east room. |
4 | Go down the stairs to the 1F. |
5 | Call the elevator with 〇 and proceed to B1. ┗Press the 〇 button twice and the elevator will come down. |
- Thermal Goggles
- Chaff Grenade
- SOCOM Ammo
- Ration x2
- SOCOM (if you do not have it yet)
- SOCOM Ammo (only appears when you have obtained the SOCOM)
Confinement Cell
1 | Go inside and climb the ladder. |
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2 | Press 〇 at the far end of the duct. |
3 | Get a ID Card Lv.1. |
4 | A forced battle will occur when you go outside. |
5 | Kill the enemies using the SOCOM. |
6 | Take the elevator to B2F. |
Tank Hangar Armory B2F
1 | Open the level 1 door in the center of the armory and get C4 inside.┗ Be careful of the trap doors along the passageway of the armory. |
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2 | Get Grenades in the southwest room. |
3 | Use C4 to blow up the discolored wall at the bottom left of the map. |
4 | Blow up the discolored wall in the back right with C4. |
5 | Defeat Revolver Ocelot. |
6 | After the battle, you will get ID Card Lv.2. |
7 | Return to the armory and get FAMAS in the southeast room.
┗Crawl under the laser trap to safely reach the weapon. |
8 | Contact Merrill on frequency 140.15 |
9 | Take the elevator to 1F. |
- SOCOM Ammo x7
- C4 x4
- SOCOM (if you do not have it yet)
- Grenade x2
- Chaff Grenade
- Stun Grenade
- Ration
Revolver Ocelot Boss Battle
- Chase Revolver Ocelot around the area while dealing damage to him with SOCOM.
- Ocelot will reload after firing 6 shots, giving you a good chance to attack him.
- The C4 in the center of the area will explode if you touch the wire, resulting in an instant GAME OVER.
Metal Gear Solid: How to Beat Revolver Ocelot
Tank Hangar Armory
1 | Return to the armory and get FAMAS in the southeast room. Check for traps using the Thermal Goggles. |
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2 | Contact Meryl on frequency 140.15. |
3 | Take the elevator to 1F. |
- FAMAS
- FAMAS Ammo x2
- SOCOM Ammo x5
- Grenade x3
- C4 x3
- Chaff Grenade
- Stun Grenade
Tank Hangar
1 | Get the SOCOM’s Suppressor attachment in the east room on the 1F. ┗ This attachment mutes the sound when firing the SOCOM so nearby enemies will not be alerted. |
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2 | Get the Cardboard Box A in the west room of the 2F. |
3 | Get the Mine Detector in the east room of the 2F. |
4 | Proceed forward when the door to the delivery port opens. ┗You can see the traps along the area with Thermal Goggles. Proceed along the path while crawling. |
- Suppressor
- SOCOM Ammo x2
- Ration x3
- Mine Detector
- Cardboard Box A
- Chaff Grenade x2
Canyon
1 | Proceed through the canyon while collecting the planted Claymore mines. |
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2 | Defeat the M1 Tank. |
3 | After the boss battle, you will get an ID Card Lv.3. |
4 | Proceed to the Nuclear Warhead Storage Building. |
- Ration x3
- Grenade x 4
- Chaff Grenade x2
M1 Tank Boss Battle
- Use Chaff Grenades to prevent the M1 Tank from firing its main gun.
- Get close and throw Grenades at the driver’s seat to deal damage to the boss.
- Run away to avoid machine gun fire.
Metal Gear Solid: How to Beat M1 Tank
Nuclear Warhead Storage Building 1F
1 | Head to the elevator to the north. ┗Weapons cannot be used in this area. |
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2 | Take the elevator down to B1F. |
- Ration
- SOCOM Ammo
- FAMAS Ammo x2
- Grenade
- Chaff Grenade
Nuclear Warhead Storage Building B1F
1 | Enter the room in front of the elevator. |
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2 | Get the Nikita remote control missile in the upper right room. |
3 | Take the elevator to B2F. |
- Nikita
- Nikita Ammo x2
- FAMAS Ammo
- SOCOM Ammo
- Stun Grenade
- Ration
Nuclear Warhead Storage Building B2F
1 | Enter the gas chamber. |
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2 | Destroy the high-voltage power panel using the Nikita missile launcher. ┗The power panel is in the northwest. When your oxygen is low, go outside and recover. |
3 | Get the Gasmask at the third door. |
4 | Proceed to the right at the end of the path. ┗ You can pick up some ammo and Rations on the left side. |
5 | Go through the corridor and enter the lab. |
Laboratory
1 | Defeat the Cyborg Ninja. |
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2 | After the battle, you will get ID Card Lv.4. |
3 | Take the elevator to B1F. |
- FAMAS Ammo x2
- Ration
- SOCOM Ammo
- Chaff Grenade
Cyborg Ninja Boss Battle
- You need to use punches and kicks to damage the Cyborg Ninja since he can deflect bullets from firearms using his sword.
- Move away when you see the boss jump to avoid his descending attack.
- Cyborg Ninja will use stealth camouflage later in the fight so use Thermal Goggles to find him.
- When Cyborg Ninja’s health is low, he will approach you slowly before teleporting to a different position to attack you. Wait for him to teleport and attack before retaliating with your own strike.
- When the boss’ health reaches 0, attack him with a gun (SOCOM) several times to end the fight.
Metal Gear Solid: How to Beat Cyborg Ninja
Nuclear Warhead Storage Building 1F
1 | Find Meryl who is in disguise and follow her when she goes to the women’s restroom. ┗ Meryl has a distinct walk that is different from all the other soldiers (can be identified from the movement of her hips). |
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2 | Watch the cutscene. |
3 | You will get an ID Card Lv.5 afterwards. |
4 | Head north through the corridor. |
5 | Enter the Director’s Office. |
- Ration x4
- Nikita Ammo x3
- FAMAS Ammo x6
- SOCOM Ammo x3
- Stun Grenade
- Cardboard Box B
- Diazepam
- FAMAS (if you do not have it yet)
Director’s Office
1 | Defeat Psycho Mantis. |
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2 | Head for the door. |
Psycho Mantis Boss Battle
- You will not be able to damage Psycho Mantis if you do not connect your controller to the 2P port (original Playstation version only).
- To damage Psycho Mantis in all other versions of the game, you must destroy the statues on the left and right sides of the room (see Psycho Mantis boss guide below using the link below for steps on how to do this).
- Use a Stun Grenade to knock Meryl unconscious when Psycho Mantis controls her. You can also throw her by pressing the direction key + □.
- You can avoid the objects that Psycho Mantis hurls in his telekenesis attack by crawling. The paintings, meanwhile, can only be avoided by running to the side.
- Use Thermal Goggles to reveal Psycho Mantis when he uses stealth camouflage.
Metal Gear Solid: How to Beat Psycho Mantis
Caves
1 | Head north through the caves by crawling. |
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2 | Use Stun Grenades to stun wolves that appear. |
3 | Proceed to the southeast and crawl through the hole. |
4 | Meet up with Meryl and go through the door. |
Underground Passage
1 | Go through the minefield by crawling. ┗ Use Thermal Goggles to know where the Claymore mines are. |
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2 | After the cutscene, return to the Tank Hangar Armory B2F. ┗ Call frequency 141.12 to know the location of the sniper rifle. |
You can fast travel to various areas you visited by hiding under specific cardboard boxes you have obtained thus far.
Equip the Cardboard Box A and get on the truck on the 1F of the Nuclear Warhead Storage Building to fast travel to the Heliport (since the canyon where you fought the M1 Tank has gun cameras and Claymore mines all over the field, you can save time having to go through them by fast traveling).
Equipping the Cardboard Box B, meanwhile, lets you fast travel back to the 1F of the Nuclear Warhead Storage Building from the Heliport truck.
Tank Hangar Armory B2F
1 | Enter the northwest room using the Lv5 ID card |
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2 | Use Thermal Goggles to avoid the traps in front of the PSG1. ┗ After finding it, move to the area from the southwest. |
3 | Return to the underground passage. |
- PSG1
- PSG1 Ammo x2
- FAMAS Ammo x8
- SOCOM Ammo x9
- Nikita Ammo x4
- Stun Grenade
- Chaff Grenade
- Grenade x4
- C4 x5
- Ration
- Camera
Underground Passage (Revisit)
1 | Defeat Sniper Wolf (1st battle). |
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2 | After defeating Sniper Wolf, head forward for a cutscene. ┗ An event that will determine the type of ending you will get will be coming up so it is recommended to save here. |
3 | Get a ID Card Lv.1. |
4 | A forced battle will occur when you go outside. |
5 | Kill the enemies using the SOCOM. |
6 | Take the elevator to B2F. |
- PSG1 Ammo x3
- SOCOM Ammo
- FAMAS Ammo
- Ration
Sniper Wolf Boss Battle (1st Battle)
- Stick to the left and right walls and do not expose yourself when the laser sights from Sniper Wolf’s rifle is still present.
- When the laser sights disappear, equip the PSG1 and aim for the boss.
- To reduce camera shake while aiming, use Diazepam.
Metal Gear Solid: How to Beat Sniper Wolf
Medical Room
1 | Go through the torture sequence ┗ The ending you will get at the end of the game depends on whether you endure or submit to Revolver Ocelot’s torture. To get the best ending, do not submit. |
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2 | Get Ketchup from Otacon. |
3 | Use Ketchup while lying on the floor while the guard is not looking. |
4 | When the guard opens the door, throw him and escape. |
5 | Collect your gear and leave the medical room. ┗There is a time bomb in your gear so be sure to throw it away. |
6 | Return to the underground passage. |
If Snake catches a cold and sneezes, use some Cold Medicine. You can get this in the middle room on the west side of the Nuclear Warhead Storage Building B1F.
You can also pick up the Body Armor at the level 6 room on the west side of the Nuclear Warhead Storage Building B2F. There will be a forced battle with the enemy ahead, so make a detour to get the Body Armor.
- Ketchup
- Handkerchief
- Body Armor (Nuclear Warhead Storage Building B2F)
Underground Passage
1 | Head north and open the door. |
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- SOCOM Ammo
- FAMAS Ammo
- PSG1 Ammo x2
Communications Tower Building A
1 | A forced alert will be triggered when you go through the passage. |
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2 | Get the Rope. |
3 | Go up the stairs while defeating enemies using FAMAS. ┗Do not open the door on the way. |
4 | Climb the stairs and go up to the roof using the ladder. |
You can skip killing the enemies as you go up the stairs by using Stun Grenades to stun those pursuing you from behind. Then, grab and throw the soldiers that you approach going forward by pressing the directional key + □ while unarmed.
- SOCOM Ammo x7
- FAMAS Ammo x8
- Ration x3
- Stun Grenade
- Rope
Communications Tower Building Rooftop
1 | Head north for a cutscene. |
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2 | Equip the Rope and go down the rooftop. ┗ Kick the wall with the × button and go down with the direction key ↓. Note that you will take damaged if you touch the smoke that is being sprayed along the passage. |
Communications Tower Bridge
1 | There are 3 enemy soldiers at the end of the corridor. Take them out from a distance with the PSG1. |
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2 | Enter the room to get the Stinger. |
Communications Tower Building B
1 | Go down the stairs. |
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2 | Watch the cutscene in front of the elevator. |
3 | Go up the stairs on the right side of the elevator. ┗ Disable the nearby gun camera with a Chaff Grenade. |
4 | Collect ammo before climbing to the roof. |
5 | Defeat the Hind D. |
6 | Return to the elevator and head to the 1F. |
7 | Defeat the 4 soldiers that are using stealth camouflage. ┗ You can kill them easily by throwing them all and then choking them one by one. |
8 | Head for the snowfield. |
- SOCOM Ammo x4
- FAMAS Ammo x9
- Stinger Ammo x4
- PSG1 Ammo x3
- Grenade
- Chaff Grenade
- Ration x2
Hind D Boss Battle
- Check the Hind D’s position with the soliton radar while taking cover behind the water tank.
- Aim the Stinger toward Hind D’s position and wait for it to lock on.
- Fire the Stinger. When you see Hind D perform its missile strike, take cover behind the water tank to avoid taking damage.
- You can pick up more Stinger ammo in the lower part of the area.
- When the Hind D’s health is low, it will start hiding behind the building. Note that you can still lock on the boss even from behind the building which wil let you fire as soon as it stick itself out of cover again.
- When the Hind D does another missile strike, hide behind the water tank again.
Metal Gear Solid: How to Beat the Hind D
Snowfield
1 | Defeat Sniper Wolf (2nd Battle). |
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2 | Collect ammo inside the small rooms and go north. |
- PSG1 Ammo x4
- SOCOM Ammo x3
- FAMAS Ammo x3
- Nikita Ammo x4
- Ration x3
- Chaff Grenade x2
- Grenade x2
- Stun Grenade
- Diazepam x2
- Cardboard Box C
Sniper Wolf Boss Battle (2nd Fight)
- Shoot Sniper Wolf with the PSG1 for direct damage.
- It is also possible to damage Sniper Wolf with the Nikita (shoot and guide the missile from the right side of the safe zone to the left side of the area to prevent the missile from hitting the cliffs).
- You can take out the boss easily using the Stinger if you have managed to save up a lot of ammo for it.
Metal Gear Solid: How to Beat Sniper Wolf
Blast Furnace
1 | Stick to the wall on the west side of the area and proceed along the path. ┗If you hit the moving wall, you will fall and get a GAME OVER. Crouch to avoid it. |
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2 | Head to the freight elevator. |
- SOCOM Ammo x3
- PSG1 Ammo x2
- Nikita Ammo x2
- FAMAS Ammo
- Stinger Ammo x2
- Stun Grenade x2
- C4
- Chaff Grenade
- Ration x2
- Body Armor (if you do not have it yet)
Freight Elevator
1 | Examine the panel of the elevator to begin a forced encounter. ┗ You can throw enemies from the elevator to defeat them. |
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2 | Watch out for the gun camera and Claymore mine along the path after getting off the elevator. |
3 | Go to the 2F. |
4 | Head for the door. |
Underground Warehouse
1 | Defeat Vulcan Raven. |
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Vulcan Raven Boss Battle
- Vulcan Raven has a wide frontal field of vision, making it hard to deal damage to him head on.
- Use the Nikita and guide the missiles to his side or behind him.
- Claymore also lets you deal damage to him if you place them on the path where you predict Vulcan Raven will pass through.
- Approach the boss from behind and place C4s in the corner. Then, lure him towards the explosive and detonate it to deal damage.
- Note that Rations may freeze and become unusable after a certain period of time during the fight.
Metal Gear Solid: How to Beat Vulcan Raven
Underground Warehouse (North)
1 | There is a pitfall in the middle of the passage, so run past it. |
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2 | Disable the gun camera with a Chaff Grenade and run. |
- Stinger Ammo x4
- Chaff Grenade
- Ration
- Mine Detector (if you do not have it yet)
Underground Base (1F)
1 | Proceed to the right (radio Otacon). |
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2 | Climb the ladder to the 2F. |
- SOCOM Ammo
- FAMAS Ammo x2
- Chaff Grenade
- Ration x2
Underground Base (2F)
1 | Proceed through the passage (radio Otacon). |
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2 | Climb the ladder to the 3F. |
- FAMAS Ammo
- Chaff Grenade
Underground Base (3F)
1 | Answer Otacon’s call when you get on REX via the ladder. |
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2 | Kill enemies on the way to the control room. |
3 | Watch the cutscene upon entering the control room. |
4 | Head to the 1F. ┗ How you get the PAL key depends on the number of times you were discovered by the enemy. |
- SOCOM Ammo x2
- Stinger Ammo x2
- Chaff Grenade
Underground Base (1F)
1 | If the PAL Key falls in the drain, run around to get it. If it gets stolen by a mouse, set a C4 or Claymore where it will run to to kill the rodent. |
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2 | Head to the control room and enter the room temperature PAL Key. |
3 | Head to the underground warehouse where you fought Raven. |
Underground Warehouse
1 | Wait until the PAL Key cools down. ┗ Hold down L2 to see if it has cooled down. |
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2 | Afterwards, return to the control room and insert the low-temperature PAL key. |
3 | Head to the blast furnace. |
Blast Furnace
1 | Wait until the PAL Key warms up. ┗ Hold down L2 to see if it has warmed up. |
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2 | Afterwards, return to the control room. |
Underground Base (3F)
1 | Insert the warm PAL Key in the control room. |
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2 | After generating gas, contact Otacon. |
3 | Leave the control room and follow Liquid Snake. |
4 | Defeat Metal Gear Rex. |
5 | Defeat Liquid Snake. |
- Stinger Ammo x3
- Chaff Grenade
- Stun Grenade
- Ration x2
Metal Gear Rex Boss Battle
- Use Chaff Grenades to hinder Metal Gear Rex’s vision.
- Pass through Metal Gear Rex’s legs and position yourself behind it on the left side.
- Attack the radome on the boss’ left shoulder with the Stinger.
- Aim at the cockpit at a medium range during the second phase of the fight. If you get too close, you will be trampled or get hit by lasers..
Metal Gear Solid: How to Beat Metal Gear Rex
Liquid Snake Boss Battle (Final Boss)
- The final boss of the game is fought within a time limit of 2 mins and 30 seconds.
- You can grab and throw Liquid Snake with the directional pad + □. The damage, however, is low so stick to using punches and kicks to reduce the boss’ health.
- If Liquid Snake dodges your punches, avoid following up with the kick and quickly move away.
- If you are knocked off Metal Gear Rex and are hanging on the edge, mash the button to climb back up.
- Liquid Snake will perform a tackle attack when his health is low. When you see the boss crouch down and shout, move to the left or right to avoid the attack. Then, approach Liquid Snake before he recovers to land some hits.
- The battle will not end even if you reduce Liquid Snake’s health to 0. To finish off the boss, land a kick when he is near the edge.
- If you do not defeat Liquid Snake within the time limit, you will get a GAME OVER. When you restart, the time limit will be adjusted to 3 minutes.
Metal Gear Solid: How to Beat Liquid Snake
Escape Route
1 | Pick up the Ration on the right. |
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2 | Go left and pick up another Ration. |
3 | Go through the forced encounter in the parking lot. |
4 | Get on the jeep. |
5 | Destroy the drum with the machine gun. ┗ While holding △, you can shoot in first-person view (hold down □). |
6 | Destroy the drum at the checkpoint. |
7 | Reaching the second checkpoint will kill all enemies instantly. |
8 | Survive Liquid Snake’s pursuit. |
9 | Watch the ending. |
- Ration x3
Other Metal Gear Solid (MGS1) Guides
Metal Gear Solid (MGS1) Walkthrough
Metal Gear Solid (MGS1) Main Story WalkthroughMetal Gear Solid (MGS1) Useful Guides
Metal Gear Solid (MGS1) Boss Guides
▼MGS 1 Boss Guides | |
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Revolver Ocelot | M1 Tank |
Cyborg Ninja | Psycho Mantis |
Sniper Wolf | Hind D |
Vulcan Raven | Metal Gear Rex |
Liquid Snake |
Metal Gear Solid (MGS1) Weapon Guides
▼MGS 1 Weapon Guides | ||
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SOCOM | FAMAS | Nikita |
PSG1 | Stinger | Grenade |
Stun Grenade | Chaff Grenade | C4 |
Claymore |
Metal Gear Solid (MGS1) Item Guides
Metal Gear Solid (MGS1) All Items List and LocationsMetal Gear Solid (MGS1) Forum
▼MGS 1 Forum | |
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Chat Board | Question Board |
Bug Report Board |
Metal Gear Solid Master Collection Vol. 1 Game Guides
▼MGS Master Collection Vol.1 Guides | |
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Metal Gear Solid | Metal Gear Solid 2: Sons of Liberty |
Metal Gear Solid 3: Snake Eater |
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