Nuclear Power Plant

Enter the first room and squeeze into the door on the bottom right to find humans to consume. Proceed to the path on the right.

Encounter and destroy the first rivet by charging. Proceed east.

In the next room, defeat the armed humans and the armored guard. Head left, as the east path is blocked by wooden beams.

Charge to push the rivet, then go downwards. Push out the two rivets and enter the pool at the bottom. Deposit some Biomass and go east.

Push the switch to open the first lock. Shoot a web string through the grated wall to push the lever, opening the gate below. Proceed downwards.

Destroy the grid in the next room and enter the tube in the vent to proceed upwards.

Take the next tube down to reach the first hive. Activate it to spread Biomass, save, and open a shortcut to the vent below. Use parasitism on the armored guard to take down the armed humans, then proceed west.

Defeat the armed human and two armored guards. Pull the lever to open the lock, allowing access back to the vent. Take the tube upwards, charge through the wooden beams on the left and upwards, and get rid of the rivet blocking the area.

Proceed west, charge through the wooden beams on the left, and eject the rivet to return to the pool. Deposit Biomass and return to the previous room.

Shoot a cobweb to pull the lever, opening the locked path above. Defeat the armed enemy and proceed east.

Pull the switch to open the lock, then enter the water and activate the hive in the left corner. Proceed through the tube and swim through the grated walls to the next room.

Be careful of the 2 armed humans and 2 armored guards with flamethrowers. Shoot cobwebs to make them vulnerable, then finish them off. Pull the switch to open the locked path on the east.

Swim right and charge to push the rivet so the monster can pass. Enter the tubes, swim through the grated walls, and proceed west. Defeat the armored guard on the left, take out the vent door, and proceed west. Deposit Biomass in the pool of red liquid and return to the previous room.

Shoot a web sling through the grated wall to push the switch and open the gate. Go through the tubes and enter the path leading below. Use parasitism on the armored guard to make him pull the switch, lowering the water level and opening the gate. Proceed east and enter the vent to advance.

Activate the hive, break the vent grid, and go west. Defeat the armed humans ahead and proceed upwards. Defeat the two humans and destroy the drone to open the gate. Hide near the turret and use parasitism to control a human, then seize parasitism to reach the other side and enter the tube below.

Enter the containment unit to retrieve the biomass sample and get the Harpagorrhea upgrade. This is the last evolution, granting the ability to shoot harpoons that can remove rivets. Use it on the rivet ahead and proceed east.

Break the wooden beams blocking the path downwards and descend. Pull the rivet, keep descending, and deposit Biomass in the red pool. Return, charge through the rivet, head back to retrieve Biomass, pull the last rivet, and proceed upwards.

Return to the room with the turret. Pull the rivet, use the vent to reach the other side, pull the other rivet, and advance west.

Activate the last hive to save and open the door vault. Pull the rivet and descend. Be careful of the two dreadnoughts; enter the water and launch harpoons through the tubes to hit them. Once defeated, the gate on the left will open. Proceed to the next room.

Find the switch and the contraption. Pull the switch to expose the core. Absorb the core, then go to the contraption and insert it to open the gate.

Proceed to the room on the left, keep west, and reach the rivet. Pull it and turn the switch to expose the core. Absorb it and enter the tube leading upwards.

Insert the core on the contraption to unlock the gate and squeeze into the vault door to proceed to the next area.