
#Subnautica below zero leviathan upgrade#
The Perimeter Defence System upgrade releases a shock wave of electricity from your Seamoth after you activate the system by selecting it and pressing, or you can release a much larger shock wave by holding in the fire button, this is most effective to shock the reaper and make it retaliate for a short time span before the reaper eventually comes back for more.

This is the area of bringing a Seamoth to a submersible fight. Note: it is best advised to bring a couple of spare batteries with you, should you take on more than one Reaper. The Repulsion Cannon is an upgraded variant of the Propulsion Cannon where instead of being able to pick up and launch objects with the device (quite literally the Gravity Gun from Half-Life 2), you can instead launch a blunt energetic force towards anything in a 10-meter point in front of you, this is usually very handy in an event or should the reaper escaping the stasis bubble, you can fire the Repulsion Cannon at it and it will stun the creature for about 5 seconds, giving you enough time to fire the stasis rifle at it again and freeze it once more where you can keep on slicing at the reaper with your knife until it’s dead.

The Stasis Rifle freezes objects in a bubble that forms from the projectile launched from the rifle itself, this bubble varies in size the more you hold in the fire button, meaning when you hold it in for the maximum duration of 5 seconds, it will release a large bubble that will freeze the leviathan once it touches it and will last for the duration of about 30 seconds before it quickly shrinks and disappears, prompting you to charge and launch the rifle once more.
