Golgo 13: Top Secret Episode/Acts 11 & 12

Finding Smirk
You'll be greeted by the small mob boss, who will repeat nearly the same speech he made to you at the start of Act 9. You will then find yourself inside of a base. From this point on, the bases become quite simple. The first floor is a spiral. You'll encounter a few enemies as you make your way to the center. Advance through the door, and climb down the ladder.

Go through the door to the east, and follow the path around to the next door. When you walk in, it's easy to miss the door immediately on your right, where inside you can find a health drink. Return to the hallway and continue west. Once again, you may miss a door to your right. Head through it, and step in to the south to find a cache of ammunition. Return and continue through the east door, and turn right. Head south down the corridor and turn right, and continue on to the goal.

A man will come out and greet you. You will identify him as Smirk, although he looks like a cyborg Adolf Hitler (and in fact, is a reanimated Hitler in the Japanese version.) He asks Golgo 13 if he would rule the world with him, and Golgo of course declines. Then he threatens to attack you with your fake.

The Fake Golgo
Your fake will appear and give a brief speech before attacking. To beat him, think back to your fight with Spartacus. After shooting at you, the fake will jump in the air. He will either jump over your head and land behind you (which he typically does the first time), or he will jump to the opposite side of the hallway. Point your sites on the opposite side and be prepared to shoot him right when he lands. Unlike Spartacus, you'll have to hit him three times. This means you can't afford to miss since you will take a good amount of damage just waiting for the opportunity to shoot at him.

The escape
After beating him, walk through the door to the south, turn right and walk down the hallway. Turn right again and follow the pathway until you reach two doors. The one to the right (east) leads to a cache of ammunition and a health drink behind three falling walls, while the one to the left (west) leads to a ladder that takes you up to the floor above.

On the next floor, walk north through the door, and you will begin walking back out of the spiral. After encountering two enemies, the next hallway will have several laser gates. It's incredibly important to listen for the three high pitched beeps and time your way through these gates, as there's too many to slip by without getting killed. Time your way through the lasers to reach the door that leads to the exit.

Through the water
Once you make it out, you'll be in a typical base interior section with heat seeking missiles, officers on floating platforms and laser defense systems. You may not have a lot of health at this point, so it's important to proceed cautiously and destroy what you can to regain health. Make your way to the end, where you will dive into the water.

The next section of swimming will be rather uneventful. You won't encounter anything, not even an ambush, until you get close to a path that leads to a deeper level of water. It will be surrounded by water mines, so make your way carefully to the bottom. Once below, make your way to the right, past four mines in close proximity, and you will reach an ambush. It contains eight divers and one sub. It's very important to come out of this fight with as close to 200 life points as possible.

Continue swimming to the right until you see a two mines blocking a passage back to the top. Thread your way between them and reach the upper level. Continue to the right, and a set of three missiles will fly toward you. Eventually, you will reach the end and see a platform above the water. This is your goal, but it's blocked by four mines that are difficult to swim through. Watch out for the opening to the right; if you swim through there, you will return to the left side of this section of water. Swim just below the rightmost mine, and swim to the left to get around it and to the surface.