Armored Core 6: How to beat the chapter two boss Sea Spider in AC6

The Sea Spider is one of the earliest significant bosses you’ll fight in Armored Core 6. While you’ve faced several bosses leading up to it, none are as aggressive and as infuriating thus far. But worry not, as with the proper setup, you’ll be able to defeat this robotic arachnid with relative ease. 

Best Sea Spider build in Armored Core 6

This build is pretty much just a tank. Deal high damage with the gatling guns and stagger with the grenade cannons. Utilize the durability the tank legs provide and get aggressive.

How to beat Sea Spider, AC6‘s chapter two boss

Before heading into combat, getting all your gear set for maximum efficiency and minimum hassle is worth it. The first and most important AC part we went for was the spiderlike VP-424 tetrapod legs. It allows players to hover easily, which is excellent for avoiding Sea Spider’s missiles and supports larger weapons’ weight.

This is great, as the weapons we found to be the most effective are the powerful Songbird cannons attached to the back of your AC and the 10-cell missile launcher. Combined with your plasma sword, these back weapons will be all the tools you need to defeat your upcoming foe with aggression and stagger damage.

Phase one: Be aggressive

Now that you have your gear set, the first thing to note is that you need to be aggressive in the first phase. In this phase, the Sea Spider will constantly burst into the air and stomp back on the ground while shooting lasers at you.

In this phase, getting close and unleashing the missiles and Songbird cannons as often as possible while avoiding the lasers should be your approach. Do this consistently enough, and you’ll constantly stagger the boss with no issue. After staggering it, go into melee range and quickly deal with plasma sword attacks.

While these attacks don’t do as much damage compared to other bosses due to how much health this specific boss has, you’re in this boss fight for the long haul, and we found this to be the most efficient solution. Once you get the hang of it, you should get him down to 40 percent health without too much stress, and his second phase will kick in.

Phase two: Avoid the Beyblade

In this phase, the Sea Spider will take to the sky and fire lasers down on you. You’ll have to stay above ground to track its movements while keeping your distance and avoiding its barrage of lasers. Keep unleashing your Songbird and missile rounds on it to fill up its stagger bar. Once staggered in mid-air, use this opportunity to get close to it and unleash more plasma sword attacks and missiles. 

Related: Armored Core 6: Chapter 3 mission list in AC6

If possible, get above the boss once it recovers from being staggered. Doing this will allow you to deal some damage without worrying about avoiding attacks. Watch out for its desperation move as its health continues to fall: the Sea Spider will start an absurd and frustrating spinning red laser melee attack, kind of like a Beyblade or spinning top.

Like many of the Sea Spider’s air attacks, you must avoid this extremely deadly attack by keeping your distance. Boost away from it whenever it gets even remotely close to you, and unleash rounds and missiles whenever possible. Once it’s done spinning, revert to your hit, stagger, melee, and run tactic until he falls. 

Final tips for beating the Sea Spider in AC6

The Sea Spider is not an easy fight, especially for beginners, and you will most likely not come out of it unscathed. However, if you come prepared with all the recommended gear, know when to be aggressive in the first phase, and consistently avoid the second phase’s deadly attacks while dealing damage, you should take down this boss without too much trouble.