How do I kill the stupid Amalgam Alpha?

[Grantorino]

Worst boss fight design ever. I get up to the part where it goes purple and none of the stun bults work to stop it. gg ez

[ArielNugie]

aim at the eyes and dodge, use sniper or bolt

[ShitEverest / Remlok]

Hit him with your shotgun and sniper rifle in his first phase, you can use freeze bolts if it's being too hard. When the purple eye comes out shoot it with sniper rifle and lob a couple grenades + explosive bolts. He's squishy.

Having an 10s sprint is useful.

I don't see what's so hard about this boss. Just pump him full of lead and move on.
General tip:Use your crossbow. Sniper rifle is your friend, it does crazy damage.

[stonersunshine]

First phase. Stay hidden and the boss will reveal an eyeball to search for you. Shoot that eyeball to stun the boss and deal double damage. If you immediately hide under a car after you stun him the boss will not know where you are and you can repeat the process as many times as you like. It takes very few sniper rounds to put him into phase two.

Second phase. This is very easy once you know what to do. All the monster does really is charge straight at you and try to eat you. Dodge this attack by running straight past it down it's left side, it will miss. As the creature is charging you you will notice a tiny mouth/eye in it's center. When the tiny mouth/eye rapidly blinks it is a sign that the eye will open, get ready. Shoot the open mouth eye to deal double damage and knock the creature down into a lengthy stun. Keep shooting the mouth while the boss is stunned to keep dealing double damage.

Most people for phase two will freeze bolt the boss as he runs at them and then snipe his eye as he is frozen.

When hiding under a car if he spots you he will try to crush you, while he's crushing the car he is a sitting duck.

Similarly there are two storage rooms filled with ammo. If he attacks you there he is easy to shoot at without any risk to your own safety. There is a break in his attacks when he backs up for a charge and at that point you should run out of the room.

If you had a fully upgraded sniper I think you could kill him in about 4 well placed shots, that's from phase one to dead.

When sniping as you are aiming down sights flicking off the sniper to another weapon and then back to the sniper will cancel the loading animation and allow you to fire much faster.

[BlackWater]

Some tips I use, first stay completely hidden while you loot the two rooms, you can use these as a hideaway if spotted later but the rooms get wrecked and innaccessable later so clear them first if you can. That eyeball is vulnerable to a flash bolt, this would now be the time to pop a grenade or two, when the purple eye comes out best case is the sniper rifle, switch to shotty or pistol if range is closed. New Game+ yeilds a toy PERFECT for this enemy.

[Grantorino]

stonersunshine is the man. Just run towards the left of it and it will miss you and then quickly quick scope it.

[TheStark700]

Took me awhile to beat this boss today. I had no freezing bolts so it was a bit more challenging. What I did is use a combination of sniper rifle, grenades, and shotgun. First phase is easy if you hit the right spot with a bit of stealth. I bombed the hell out of the boss after that and when it was during the final phase, I just killd him with a combniation of shotgun and some well-timed pistol shots. If you hit the right spots, the boss will drop.

[$A$CHA]

Use a Freeze bolt