Blog

Dec 24, 2023

Armored Core 6: How to beat the CEL 240 boss in AC6

General An unforgiving boss in AC6 08/28/2023 Screenshot via Upcomer Armored Core 6 screenshot. Despite being a FromSoftware title, there aren’t too many classic FromSoft bosses in Armored Core 6.

General

An unforgiving boss in AC6

08/28/2023

Screenshot via Upcomer Armored Core 6 screenshot.

Despite being a FromSoftware title, there aren’t too many classic FromSoft bosses in Armored Core 6. While bosses like Balteus and the Sea Spider are challenging, most players should be able to defeat them within a short amount of time. Unfortunately, the streak of “easier” bosses completely grinds to a halt when you reach CEL 240 at the end of Chapter 4.

CEL 240 is an Ibis Series enemy that appears in Institute City when you are on the mission “Reach the Coral Convergence.” This mission completes Chapter 4, but you likely won’t be seeing the start of Chapter 5 for several hours. CEL 240 takes an extremely long time to beat unless you have an impeccable talent for mech fighting or the perfect build from the get-go.

In this guide, I will explain how I was able to beat CEL 240 in AC6 so you might not have to repeat the fight for hours on end.

First and foremost, there are a couple of settings you want to change in AC6 for this fight. First, you want to go into Camera Settings and change your Camera Sensitivity to 10. Trust me, this is a requirement. Next, I recommend turning down your Voice Volume in Audio Settings. While this isn’t required, both Walter and Ayre can get quite annoying throughout this fight and you want to ensure you can hear every audio cue from CEL 240 instead of hearing those character’s voices.

With those settings in place, we can move on to fighting CEL 240.

CEL is the fastest boss in AC6 by a country mile. You will likely not be able to keep up with it on your screen, as she moves too fast for you to keep her in your line of sight at all times. My number one piece of advice is to simply try to predict where the boss will move and if you can’t find it, then simply start dodging.

When CEL zips away off your screen, it is likely gearing up for one of two attacks: a giant beam of red energy that is fired in a straight line or a multi-beam attack that follows your character. CEL could also fire one of its fan attacks, where two or more fans of energy are shot at you. You will need to learn the attack and dodge patterns for all of these attacks. I found that dodging one way and then immediately the other way was the best strategy for most of the attacks.

If you see CEL gearing up for one of its two energy beam attacks, you want to time your dodges correctly. Listen for the audio cues and dodge right before either of the attacks is set off.

Aside from those main attacks, you want to try and get as close to CEL as you can. Firing at long range will not work due to how fast the boss moves; it will dodge all of your long range attacks with ease. Of course, remaining close to CEL is difficult given how fast it moves and that it doesn’t stay in the same spot for long.

There are some attacks, though, where CEL will remain still for a second or two. You need to strike during these times, as it’s one of your only chances to deal some damage.

Of course, all of this advice is mostly for phase one of the fight. That’s right, if you haven’t depleted CEL’s health up to this point, there is an entirely other phase you need to beat. During phase two of the fight, CEL will completely transform its attack patterns. The boss will now attack you with much wider and more devastating moves that are nearly impossible to dodge.

My recommendation for this phase is to worry about dodging more than attacking. You need to ensure you keep your health up and only try to deal damage when there is an opening. There is far less leeway during phase two than there was in phase one.

I was able to beat CEL 240 using a very specific build that is able to stagger it with a couple of shots and then deal massive damage with a single attack during the staggered period. The exact build calls for dual Ice Worm Stun Needle Launchers on your shoulders, a Pile Bunker on your Left Arm, and a Gatling Gun on your Right Arm. All of this is on top of the mini-tank legs with the Assault Armor expansion.

You can read about my full build for CEL 240 in a previous guide, but here is the basic strategy for the fight using this build:

This fight took me well over three hours to beat, so don’t expect to get past CEL 240 quickly. Using my strategy and build gives you the best chance to beat this boss as quickly as possible, though.

Joey Carr is a full-time writer for multiple esports and gaming websites. He has 6+ years of experience covering esports and traditional sporting events, including DreamHack Atlanta, Call of Duty Championships 2017, and Super Bowl 53.