(Sorry in advance for the "spoilers"). You fight a giant xenomorph. You are in a square arena with no cover. Regular xenomorphs come in over the walls in a steady stream. There are two AI partners with you. They cannot damage the giant xenomorph, only the regular xenomorphs. You fight the giant xenomorph in a powerlifter (a melee mech, basically).
- The friendly AI exclusively shoots the giant xenomorph that they cannot injure, generally ignoring the smaller xenomorphs which can still injure you. The smaller xenomorphs exclusively come after you, not the friendly AI.
- You move very slowly--because everyone likes games where you move very slowly. You have two attacks, a jab and a slash. Both take a long time and have a massive recovery period. You cannot use guns or grenades. So you need to be meticulous about attempting to attack anything because when you attack anything if you miss you will pay dearly
- Playing on hard it takes about 36 attacks to kill the boss (I've looked it up online--it takes 12 attacks to damage the boss and trigger a QTE-type scene of you trying to crush its head, and you need to do this three times to kill it)
- The boss kills you in 4 attacks; the baby xenomorphs do the exact same amount of damage.
- The boss's main attack is an unblockable headbutt which triggers a QTE-type scene which you cannot avoid. The way to avoid it is simply not being near it.
- Although the game has regenerating health, it does not regenerate during this fight because reasons.
- There are healing items in the arena but you can't get them because you're in the powerloader
- There is an achievement for beating the enemy on hard or harder in less than 1 minute; how on earth can you beat an enemy that takes 36 hits in 70 seconds when it takes more than 2 seconds to go through the hit animation?
So of course I google it...
- In a patch they dramatically increased this enemy's health
- It is generally believed to be impossible to get the achievement post-patch
- There are exactly two strategies to beat this boss on higher difficulties: 1) play in co-op and have your friends correctly target the smaller xenomorphs and hope for the best. 2) glitch the boss into a wall and beat the crap out of it with impunity.