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Zelda: Tears of the Kingdom — How to Defeat the Flux Construct 1 in TotK

Here's how to beat the first boss you'll face in Tears of the Kingdom, Flux Construct I.

It doesn’t take long to find the first boss in The Legend of Zelda: Tears of the Kingdom. Called the Flux Construct 1, you’ll encounter it as you make your way to the third shrine high in the snowy regions of the Great Sky Island. While this boss surely won’t be the most difficult fight in Link’s journey to defeat the Demon King Ganondorf, Flux Construct 1 will be one of your first real combat challenges. Here’s how to defeat it, what what to do with the Flux Construct Core that drops afterward.

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To note, you’ll need to have completed the In-Isa shrine before taking on this fight to really make it worth it. Its drop, the Flux Construct 1 Core, requires you to use Fuse to make use of it.

How to Beat Flux Construct 1 in Tears of the Kingdom

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Flux Construct 1 sits on a platform with a spinning tower, the top of which sends out a red searchlight. Move the floating block nearby with Ultrahand to give yourself a way onto the larger platform, then run toward the tower of blocks. It will quickly come to life to form the construct.

Flux Construct 1’s first attack will be to fly over to you and try to slam you with two blocky fists. Run directly away from it or around to one side to avoid damage, as it does two and a half hearts’ worth.

To beat Flux Construct 1, you need to deal damage to its core, which is the glowing green block among all the non-glowing brown ones. It can make the core block any piece of itself, so you’ll need to transition between using arrows and melee weapons to defeat it.

All Flux Construct 1 Attacks

The first boss has four main attacks, and each presents an opportunity for damage. After hitting the core enough times with either arrows or melee weapons, the whole thing will fall apart momentarily, giving you an opportunity for free damage. Be careful not to get hit by any blocks as they fall. You’ll take damage from them (ask me how I know).

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Here are all of Flux Construct 1’s attacks:

Slam Rush

The boss’ opener, this attack separates into component blocks, rushes toward you, and slams its “hands” into the ground. Run away or to the side to avoid the damage, then rush back to the core as it recovers on the ground.

Stomp

If Flux Construct reforms with you near its feet, it will stomp three or four times, creating a small shockwave like the slam rush. As before, you can avoid the attack by running away. Pelt the boss with arrows while it throws a tantrum.

Platform

The Construct makes itself into a platform and throws non-core blocks at you in sets of five. Run directly to the right or left to avoid being hit, as the blocks move slow enough to dodge. You’ll only be able to damage the core with arrows in this phase, but three or four hits will cause the Construct to crumble.

Cube

The boss collects itself into a giant cube and slowly rolls toward you. This attack isn’t dangerous from a distance, but it will one-shot you up close. My only death against this boss was because I was too close to the cube form and got myself squished.

Whenever you have a chance to do damage to the Flux Construct 1 with a melee weapon, you’ll have time for almost 10 attacks with a light weapon like a Rusty Broadsword. Heavier weapons will do more damage but have fewer successful attacks. Arrows won’t do much damage at all but are a safe way to get some hits in from a safe distance.

If you can see the core’s eye, however, you can land a critical hit with an arrow by nailing the eye itself. You’ll get the critical “ping” sound for doing so, and the extra damage to boot.

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So long as you’re always on the move and aware of where its core is, the Flux Construct 1 is a tough but not overwhelming fight. Don’t worry if you die once or twice. You don’t yet have many tools, or many hearts, to help carry your mistakes. Patience, care, and a bit of aggression where warranted will win you the day.

What to Do with the Flux Construct Core

A Flux Construct 1 Core will be left on the ground after this fight, but what to do with it is a mystery. You can’t pick it up, but you can make use of the Fuse ability to see a real gain from slaying the Flux Construct 1.

Draw your weapon and Fuse to attach the core to your weapon or shield. The Flux Construct 1 Core grants an additional +10 damage to a weapon, and I probably don’t have to tell you how good that is. Considering how big the damage boost granted by the Flux Construct 1 Core is and the TotK durability system, you’ll want to fuse it with a weapon you think you’ll be using on tougher fights later on.

That’s how to beat the Flux Construct 1 boss in The Legend of Zelda: Tears of the Kingdom and what to do with the Flux Construct Core drop. Hyrule is enormous, with plenty to uncover. Stay tuned to our TotK guides hub for much more.


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Author
John Schutt
John Schutt has been playing games for almost 25 years, starting with Super Mario 64 and progressing to every genre under the sun. He spent almost 4 years writing for strategy and satire site TopTierTactics under the moniker Xiant, and somehow managed to find time to get an MFA in Creative Writing in between all the gaming. His specialty is action games, but his first love will always be the RPG. Oh, and his avatar is, was, and will always be a squirrel, a trend he's carried as long as he's had a Steam account, and for some time before that.