Borderlands: Game of the Year Edition

Story related, can't be missed

Missions involved in this trophy:

• Get Some Answers
• Find The ECHO Command System
• Reactivate The ECHO Comm System
• Find Steele
• Destroy The Destroyer

The Vault Boss is the final boss in the game that you have to face (if you don't have the DLCs) and appears right at the end of the game. We recommend bringing a Helix Rocket Launcher and a decent Combat Rifle with you for this fight (not elemental ones. because it's immune to all of them). After you arrive at the Vault you will get a short cutscene and when it finishes it's time to kick its butt!

The first thing you want to do is run to the pillar on the far left of the screen and use your Combat Rifle to take out the two tentacles above its head by destroying the purple swellings, then empty your Rocket Launcher into its eye. Once you've done enough damage, the Destroyer will show all of his tentacles but be warned, each time you take out a weak spot the boss will get angry and start shooting Plasma Rockets at you. The boss' attacks consist of: Plasma Rockets (with a 3sec time delay on each one), a high energy Plasma Beam (this is virtually a one-hit-kill), Tongue Slap (not particularly damaging but annoying nonetheless) and its final attack is its Tentacle Smash which will blast you back to the other end of the map (this is a one-hit-kill attack if your health is low). To avoid the boss' attacks, stay behind the pillar and only stick your head out to shoot but hide when either Plasma Rockets start flying or its eye starts flashing as this is the sign the Plasma beam is going to strike. Due to a physics/graphics glitch the Plasma Beam will go straight through the pillar but fortunately it won't hurt you. If any Plasma Rockets land near you run like crazy to the Pillar on the far right of the boss and wait for them to explode. After all of the tentacles' weak spots are gone you will have to take out the final weakspot which is its eye. Hit it with everything you've got! See the image below that Terminator created for a visual guide to the above:

Here is an alternate method courtesy of JHChiBulls:

The final boss even has a "glitch" you can exploit. I stood behind the U-Station, right on the cliff edge and kept shooting him from there, as soon as my health was low I suicided and on respawn I had full health and the bosses health was where I left it before I died.

It's cheap it really is but it helped me often. I was a level 34 when I faced the boss who was a 33 and he was kicking my butt until I realized what was going on. The game didn't glitch either because I kept leaving the area, going other stuff and coming back a few times.

GLITCH WARNING

Don't get up close and personal to finish off this boss, because the game can/will glitch. You will lose most of your equipment plus all of your Backpack SDUs once the ending cutscene ends, the credits finish rolling and you continue the game. Save at the New-U station at the Vault site and Backup your saves before starting the fight to minimise the effects of this bug, should it strike.

PS4 Notes:

The above strategy still holds true for the PS4 version of the game but do note that the aforementioned game breaking glitch has been fixed so there's no need to worry about it. Also note that some new Rakk-type enemies called "Eridian Parasites" have been added to this battle so keep an eye out for them and kill them before they can attack.