Leviathan Reef Bridge

From the arrival point, go right and pull the switch to raise the water, unlocking a path downwards. Proceed through the pipe to return to the flashback location.

Swim right through the grated wall and return to Leviathan Reef Base.

Enter the tube on the right, then immediately go upwards. Swim through the grated walls to find a human behind a lock.

Use Parasitism to possess the human and seize control of their location. Squeeze into the next area.

At Leviathan Bridge, deposit Biomass in the pool, then go east to the next room.

Pull the lever to open the nearest door and close another. Advance and use a web sling to push a lever, opening your path forward.

In the next room, use Parasitism to possess an armored guard. Pull the switch to raise the water, allowing you to swim through grated walls.

Advance and pull the switch on the other side of the room to unlock the path.

Go upwards and pull the lever to unlock the gate leading upwards. Use Parasitism again to raise the water levels so you can proceed, then take the path upwards.

In the next room, break the containment unit and retrieve the sample to get **Acanthosis**. This ability allows the monster to grow spikes from its body, useful for defeating humans behind simple doors.

After obtaining Acanthosis, charge through the wooden walls and go upwards.

In the area with enemies, go right and activate the hive to spread Biomass and save your progress.

Go left and charge through the door to defeat enemies, then keep left to proceed.

Defeat the armored guards to proceed. Use spikes to eliminate the first one, then use Parasitism on him to defeat the other guard with his weapon.

Once the guards are defeated, proceed downwards and squeeze into the passage to the next area.