Metal Gear (NES)/Building 4

Part 1
Captured: After having been caught by the enemy, you will "wake up" inside a closed cell with no doors. Although all of your equipment and weapons have been taken, you still retain the ability to use the Transceiver. Big Boss will call you when you arrive. He will declare your infiltration mission a success, and order you to find Gray Fox. He says, "check the way," but this should say "check the wall". The way you do this is by punching the walls. Most of the time, your punches will have no effect, but one portion of the wall will collapse when you punch it, creating a doorway. When you find the right place, pass through the hole you created. In the next cell, you will find Gray Fox. Rescue him and he will tell you more about Metal Gear. He will inform you that there is only one way to destroy it, and the only person who knows the method is the creator, Dr. Pettrovich, who is being held captive somewhere in the building. With Gray Fox rescued, your next concern is escaping. Once again, you need to check the walls. After a thorough search, you will find that the south wall will collapse slightly to the left of Gray Fox. Punch it and step outside into room A1.

A1: Your only two choices are a locked door to the north for which you don't have the correct access card, and a passage to the east. Head east to room A2.

A2: As soon as you arrive, a mini-boss will announce his name, Shotgunner, and inform you that no one has ever escaped before. You're about to be the first, but you'll need to find some way to even the fight out. Stay on the bottom of the room and walk through the right door. Inside, you'll find a sack containing all of the items you had in your possession when you were captured, including all of your weapons. You should have at least four remote controlled missiles at your disposal, so activate them and leave the room.

Once Shotgunner is taken down, prepared card 2 and approach the left door. Inside, you will find access card 3. Unfortunately, the north door of A1 is not locked with card 3, so you still can not examine it yet. However, the east door of A2 is accessible with card 3, so open it and head to A3.

A3: Once you enter this room, you will notice a dog sleeping by the entrance. Punch or shoot the dog. If you do nothing and ignore the dog, the dog will wake up and attack you, so you are better off removing it. Open the bottom left door with card 2. Inside, you will find the body armor. Wearing this armor will reduce the amount of damage you take from bullets in half. You must have this item activated for it to be effective. Exit the room, deal with the dog, and follow the upper path east to A4.

A4: Follow the path as it leads you to the door in the upper right. Open it with card 2, and inside you will find the bomb blast suit. This item is absolutely essential in order to pass through the wind barrier on the roof of building 1 and make further progress. Then exit the room, and enter the lower portion of the room. Before you examine the southern door, which is actually the exit from the building, return west once more to A3.

A3: Back on the right side of the room, approach the lower right door, and open it with card 3. Inside, you will find the enemy uniform. It won't come in handy for some time, but you will be glad you don't have to backtrack to collect it when the time comes to use it.

Return west to A4, and exit through the southern door with card 3. You will appear outside of building 3. Refer to this page to learn how to make your way back to building 1 so you can continue your investigation.