You're paragliding through the Akkala Sky Mine or maybe just wandering the depths of the Great Abandoned Central Mine when the music shifts. It’s that eerie, mechanical clanking. Suddenly, a massive pile of Zonai blocks reassembles itself into a towering sentinel. If you’ve spent any real time in The Legend of Zelda: Tears of the Kingdom, you know exactly what a Flux Construct 3 looks like. But knowing what it looks like and knowing how to dismantle it without burning through three full meals and five fairies are two very different things.
Honestly, these guys are intimidating. They’re the "Level 3" variant, which means they’re faster, hit harder, and have more health than their junior counterparts. Most players just spam arrows and hope for the best. That’s a mistake. It wastes resources.
The Flux Construct 3 is a puzzle box. A giant, angry, shapeshifting puzzle box that wants to squash Link into a pancake.
Why the Flux Construct 3 Is Different
Unlike the standard or "1" versions, the Flux Construct 3 isn't just about hitting the glowing cube. Well, it is, but the game makes that cube a nightmare to find. The core—that singular, glowing block that serves as the boss’s brain—constantly shuffles between the others. In the earlier versions, you could basically eyeball it. Here? It hides. It moves mid-attack. It taunts you.
The stats matter here. We’re talking about a boss with roughly 1,080 HP. While that’s not "King Gleeok" levels of terrifying, the defense is high. If you’re rocking base-level Soldier Broadswords, you’re going to be there all day. You need high-damage fusions. Silver Lynel Saber Horns or even just some sturdy Zonaite weapons fused with Flux Construct Cores from previous fights make a massive difference.
You've probably noticed the block patterns. It has three main forms: the humanoid, the "Octorok" platform (the flat square), and the giant rolling cube. In the third tier, these forms are aggressive. The humanoid form will literally teleport-slam you if you try to keep too much distance. It’s mean.
Ultrahand Is Your Best Friend (Seriously)
Most people forget that the Flux Construct 3 is literally held together by Zonai magic that Link happens to have the master key for. Why are you shooting arrows at a pile of blocks when you can just rip the blocks off?
Here is the trick: Ultrahand can grab the core.
When the construct is in its humanoid form, don't wait for it to attack. Pull out Ultrahand, aim for the glowing cube, and wiggle the right stick. It’ll pop right out. The entire boss collapses into a heap of useless stones. That’s your window. If you can’t grab the core because it’s buried in the back or the legs, just grab any block. If you pull enough of them off, the whole thing loses structural integrity and falls apart anyway.
It’s almost funny how easy it becomes once you stop treating it like a traditional Zelda boss and start treating it like a LEGO set you’re dismantling.
Dealing With the "Platform" Phase
This is where things usually go south for players. The Flux Construct 3 rises high into the air and turns into a flat, floating square. From there, it launches five blocks at you like heat-seeking missiles. If you’re standing on the ground, you’re just a target.
Don't run. Use Recall.
Wait for it to throw a block at you. Dodge it, then immediately jump on top of that block and hit it with Recall. You’ll go flying upward, right past the rest of the boss's projectiles, landing directly on top of the construct. Now you’re standing right next to the core. Get your highest-damage two-handed weapon, hold the charge attack (the spin), and watch that health bar melt.
If you’re feeling fancy, you can also use an Ascend jump. If you can get underneath the platform, Ascend will pop you right through the blocks. It’s a bit riskier because the boss moves, and if you miss, you’re stuck looking at the sky while a block hits you in the back of the head. But it’s fast. Very fast.
The Rolling Cube Chaos
The third form is the giant rolling cube. In the Flux Construct 3 version, this thing moves surprisingly quick. It will try to crush you, and the core is usually tucked deep inside one of the faces.
- The Easy Way: Stay back and use Ultrahand to pull blocks off as it rolls toward you. Eventually, it hits a "limit" and falls apart.
- The Pro Way: Time a bomb arrow or a cannon shot. If you hit the core while it’s rolling, the entire thing shatters instantly.
- The Safe Way: Just keep running in a circle. It’s a cube. It has poor cornering. Wait for it to stop rolling and transition back to humanoid form.
Weapons and Fusions That Actually Work
Stop using plain swords. It’s a waste.
💡 You might also like: Why This Land Is My Land Still Matters to Survival Fans
Because the Flux Construct 3 is made of blocks, it’s technically "ore-adjacent." Blunt weapons do slightly better for breaking the stance, but honestly, raw DPS is king. Fusing a Flux Construct 2 Core to a Scimitar of the Seven or a Royal Guard’s Claymore is the way to go. If you’re in the Depths, make sure you’re using weapons that aren't decayed, or at least have a high-tier monster part attached.
If you have some Riju’s Lightning ready, use it. The area-of-effect blast can often hit the core even if it's shielded by other blocks. It’s a great way to force a "stun" state when the boss is being stubborn.
What You Get for Winning
Why even bother? The loot.
The Flux Construct 3 drops the Flux Construct 3 Core. You can’t put this in your inventory; you have to fuse it to something. It grants +32 attack power. That is a massive boost for mid-to-late game. If you attach it to a Zonaite weapon, you get an even bigger buff because of the "Zonaite Resonance" property.
Beyond that, you get a bunch of high-tier Zonaite (large and small) and usually some Zonai Devices like Big Batteries or Rockets. If you’re trying to build a hoverbike or a tank to explore the Depths, these guys are your primary source of fuel. They are essentially walking batteries.
✨ Don't miss: gta5 mods for pc Explained (Simply)
Common Mistakes to Avoid
- Panic Paragliding: If you're in the sky, don't just float there. The Construct will throw blocks with pinpoint accuracy.
- Ignoring the Core: Don't just hit the "body." You are doing 1/10th of the damage you could be doing.
- Overusing Arrows: Unless you have a x3 or x5 Lynel Bow, arrows are just a slow way to win. Use Ultrahand.
- Staying Too Close: When the boss collapses, you have about 10 seconds of free hits. When it starts to vibrate, get out. The "rebuild" animation has a hitbox that will knock you back and take three hearts for no reason.
The fight is essentially a rhythm game. Rip a block, hit the core, dodge the slam, Recall the platform. Once you find that flow, the Flux Construct 3 stops being a boss and starts being a resource farm.
Actionable Strategy for Your Next Encounter
To master this fight right now, go find the Flux Construct 3 located on the Central Hyrule Sky Archipelago. It’s one of the more accessible ones.
First, ensure you have at least one Stamina Wheel upgrade so you can use the spin-to-win technique with a heavy weapon. Before the fight starts, fuse a Rocket to your shield. As soon as the boss starts its platform phase, hold ZL to launch into the air. This bypasses the need for Recall and lets you slow-motion aim an arrow at the core for an instant stun.
Once the core is exposed on the ground, switch to your strongest claymore and hold the attack button. Don't stop until your stamina is almost gone. Repeat this twice, and the fight is over. It should take less than 90 seconds. Collect the +32 Core, fuse it to your backup weapon, and you’re ready for whatever the Depths throws at you next.