The Killing Antidote Guide | All Technical Zone (Yellow Area) Doll Locations

The Technical Zone (Yellow Area) in The Killing Antidote is a dense maze of power routing puzzles, parkour sections, and deadly enemy encounters. 

While you are busy juggling Red Power Lines, Yellow Power Lines, and different save rooms, it is very easy to miss the dolls hidden along pipes, vents, and elevator shafts. 

This guide shows you where to find all eight dolls in the Technical Zone, from the Maintenance Room near the Utility Save Room to the final 3rd Floor Elevator Shaft doll after the Maze, so you can clear every collectible while progressing naturally through the story.

All Technical Zone Doll Locations In The Killing Antidote

Every doll in the Technical Zone (Yellow Area) sits close to a major puzzle or route change. You will often see them around power routing rooms, big parkour setups, or just after stressful encounters. 

Move slowly when you enter a new save room or elevator shaft, check railings and pipes, and scan vents that connect to Red Power Lines or Yellow Power Lines. If you follow the path in this guide, you can grab every doll in one playthrough without extra backtracking.

Maintenance Room Doll In The Yellow Bridge Area

The first doll in the Technical Zone is inside the Maintenance Room next to the Utility Save Room. This room is a large open space with a tall Yellow Bridge running across the center and two locked gates on the left and right side. 

To reach the doll, you need to parkour along the left side of the area. As you move down through the platforms, look for a corpse lying on the lowest level of the pipes beneath the bridge. 

The doll sits on the same set of pipes, positioned opposite the body. Drop down carefully, walk along the pipes toward the spot across from the body, and pick up the doll before you return to the main route.

Elevator Shaft Doll Near The Entrance Save Room

The next doll is found in the Elevator/Lift Shaft, shortly after passing through the No Weapons gate. Once you clear this gate, you will arrive at the Entrance Save Room, which acts as your nearby checkpoint. 

From here, continue straight ahead toward the Technical Hub until you come to a crossroads. The Elevator door is on the right side of this junction. Go through this door and follow the hallway until you reach the shaft area itself. 

Look along the railing in this elevator section and you will see the doll resting on it. Walk up to the railing, grab the doll, and then focus on the rest of the zone.

Red Power Line Vent Doll On The 3rd Floor

The third doll is tied to the Red Power Line puzzle on the third floor of the Technical Hub. To unlock this doll, you must route the Red Power Line up to the third floor. After the power is correctly routed, head to the third floor and enter the Technical Hub. 

Once you step inside, look to the right side. You will see a red vent along the wall. This vent is part of a parkour puzzle that normally rewards you with an Ammo Upgrade. Start climbing through this vent-based parkour route. 

Instead of stopping as soon as you reach the upgrade, keep climbing a little higher along the platforms and vent edges. At the top of this extended path, you will find the doll waiting as an extra reward above the main collectible.

Red Power Line Doll In The 2nd Floor Lavatory

The next doll is linked to another Red Power Line puzzle, this time on the second floor in the Lavatory. This room also holds an Inventory Upgrade known as the Pouch, so it is an important location for both progression and gear. 

To enter the room, you have to route the Green Power Line to open access to the second floor and then route the Red Power Line to unlock the specific Lavatory room.

This is the same place where you previously had to run from the Slashy enemy, so you need to return later in the game when you are better equipped. You can bring guns or a mine to try to kill Slashy, although this is very difficult. 

When you enter, look for the button that closes the door behind you, which keeps Slashy out and gives you some breathing room. After you secure the door, search the vent in this room. The doll is hidden inside that vent, so climb up, check the interior, and collect it before you leave with your Pouch.

Hulk Elevator Shaft Doll Near The Janitor Save Room

Another doll is locked behind a dangerous climb in the Elevator Shaft With Hulk, which you can reach after you have three Power Nodes. This part of the Technical Zone takes place late in the game. 

Start from the Janitor Save Room and use the other exit that leads into the required elevator shaft. Your goal here is to climb upward and get the small elevator working again. While you are making your way up, a Hulk enemy will appear and spit at you, making every jump riskier. 

The doll is positioned near this enemy, and Hulk effectively guards it. To claim the doll, you must time your jump toward the platform near Hulk, grab the doll quickly, and avoid getting knocked off or killed by his attacks. This doll is one of the more dangerous ones in the Technical Zone, so be ready for repeated attempts.

Stairwell Doll After The Yellow Power Line Puzzle

The next doll appears in the stairwell that opens after a complex Yellow Power Line routing puzzle in the Duty Room. To reach this step, you first need to route the Red Power Line into the Yellow Power Line system inside Duty Room. 

After you survive this challenge and solve the routing inside the Rabbit and ABCD rooms, the door in the Binary room will unlock. This newly opened door leads into a stairwell that takes you deeper into the Technical Zone. 

Head into the stairwell and look to the right side as you move along the steps. You will see the doll resting on a stack of boxes against the wall. Pick it up on your way through so you do not have to come back later.

Maze Doll With Boomy/Kamikaze

The following doll is located inside the Maze, and it is one of the most dangerous dolls in the zone because it is tied to an explosive enemy. Right after you leave the stairwell from the previous doll, you enter the Maze. 

Take the first left when the path splits. In this section, you will find a cage holding a Boomy/Kamikaze enemy. This enemy is carrying your doll. 

To get the doll, you must route the Yellow Power Line to the cage so the door can open, then carefully bait Boomy/Kamikaze out of the cage and away from the doll’s position. 

Once the path is safe, move in and collect the doll. It is safer to leave this doll until after you fix the elevator and come back with stronger weapons or a mine, but you can attempt it earlier if you are confident.

3rd Floor Elevator Shaft Doll After The Maze

The final Technical Zone (Yellow Area) doll is found in the 3rd Floor Elevator Shaft that you reach immediately after clearing the Maze. When you exit the Maze, go through the SGX Room and continue to the nearby Elevator. 

Here you will find a small parkour section that leads up to a lever. Pulling this lever starts the elevator and also opens a door on the opposite side of the lever platform. Go through this newly opened door into a small, grated room. 

Inside, look to the left side where there is a body lying near the wall. The doll sits next to this body on the left side of the room. Pick it up to finish the last doll in the Technical Zone and complete the whole Yellow Area collectible set.

Also, check our The Killing Antidote Review.