Flux Construct I

Maren's Tip

Stock up on Hearty meals before boss fights — a single Hearty Durian dish gives full recovery plus bonus hearts. Don't forget to save!

Description

A Zonai defense automaton made of animated cubes. It shifts between humanoid, platform, and cube forms, each protecting its glowing core differently. The introductory variant found on Sky Islands.

Weakness

Flux Construct I's primary weakness is Glowing core cube — pull out with Ultrahand.

How to Beat Flux Construct I

1. Flux Construct I is the introductory version of the Zonai defense automaton, found on Sky Islands and in the Depths.
2. It is made of animated cubes that shift between three distinct forms.
3. Understanding each form is key to victory.
4. Preparation: Bring a decent melee weapon with moderate to high attack power.
5. Arrows are useful but not required.
6. The most important tool is Ultrahand — the entire fight revolves around using it.
7. Humanoid Form: The Construct stands upright like a golem.
8. Look for the single glowing green cube embedded in its body — this is the core.
9. Use Ultrahand to grab the core cube and pull it out of the body.
10. The construct will collapse into scattered cubes, and the core lands on the ground vulnerable to melee attacks.
11. Strike it rapidly until the construct reassembles.
12. The humanoid form attacks with arm swings and ground pounds that send out small shockwaves.
13. Dodge laterally and look for the core while it is mid-attack, as the movements sometimes expose it clearly.
14. Platform Form: The construct flattens into a hovering platform.
15. The core cube is usually visible on the top surface.
16. Use Ascend to pass through the platform from below — you will emerge on top right next to the core.
17. Grab it with Ultrahand and pull it off the edge, then attack it on the ground.
18. Alternatively, you can use Recall on cubes the construct throws to ride them back up to platform height.
19. Cube Form: The construct compresses into a large cube and rolls toward you.
20. The core is embedded in one face of the cube.
21. Time your Ultrahand grab for when the core-face rotates toward you, or wait for the cube to stop and try to slam you.
22. After pulling the core out in any form, you get roughly five to eight seconds of free melee hits before it reassembles.
23. Three to four core exposure cycles should finish Flux Construct I.

Rewards

• Zonai Charge x4
• Large Zonai Charge
• Flux Construct I Core

Shrines in This Region

Collect Lights of Blessing from nearby shrines to unlock additional Heart Containers — essential for surviving this boss fight.

• Daka Shrine — Puzzle · Difficulty 1/5
• Dokabok Shrine — Combat · Difficulty 1/5
• Ekochiu Shrine — Puzzle · Difficulty 2/5
• Ga-ahisas Shrine — Rauru's Blessing · Difficulty 1/5
• Gutoku Shrine — Rauru's Blessing · Difficulty 1/5
• Joku-u Shrine — Puzzle · Difficulty 3/5
• View all 152 shrines →

Related Bosses

• Flame Gleeok — Overworld Boss, Various (Eldin, Hyrule Field), HP 2,500, 4/5
• Frost Gleeok — Overworld Boss, Various (Hebra, Tabantha), HP 2,500, 4/5
• Thunder Gleeok — Overworld Boss, Various (Gerudo, Akkala), HP 2,500, 4/5
• King Gleeok — Overworld Boss, Depths / Rare Surface, HP 4,000, 5/5
• Flux Construct II — Overworld Boss, Sky Islands / Depths, HP 1,200, 3/5
• Flux Construct III — Overworld Boss, Sky Islands / Depths, HP 1,800, 4/5

Related Guides

• Weapons Database — Find the best weapons for every boss fight
• Temple Walkthroughs — Complete dungeon guides with boss prep
• Armor Sets — Best armor for boss resistances & defense
• Shrine Walkthroughs — All 152 shrine solutions for max hearts