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These are the most challenging and complex LEGO sets to build!
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Have you ever wondered which LEGO sets are truly the most difficult to build? Today we dive into a collection of complex sets ranging from intricate Technic gearboxes to deceptively fragile models that have stumped even the best master builders. We will peek at the specific design choices and instruction errors that turned these fun projects into stressful experiences. Watch the full video to see if your most frustrating build made our list of legendary headaches and comment which LEGO set you think is the most challenging.

Watch More LEGO Videos:
➝ LEGO Sets With Too Many Minifigures: https://youtu.be/0-MQEvomCYU
➝ 0 IQ LEGO Sets – https://youtu.be/LVfbHzKyvdE
➝ 10 Hidden Secrets in LEGO Sets – https://youtu.be/88wmTsMfZSk

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12Comments

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  1. 1
    @SpitBrix

    What is the most challenging set you’ve built?
    Tap the LIKE button if you enjoy! It’s the easiest way to support my videos!

  2. 8
    @holyhandgrenade5

    I bought a sealed EXO-FORCE set to build once I had an adult job and it blew me away how much better the instructions are nowadays. It was also kinda crazy to me that the backs of the mechs were mostly not detailed at all – nowadays there would at least be something. Still love the set and I turned the box into a display for it.

  3. 9
    @Proximoprod

    Dude what are you talking about? Lego Sets are getting less and less complicated! They’re basically designed for morons! It’s the worst bricks company out there and only idiots buy Lego!

  4. 10
    @coffeeinhandproductions3238

    Most challenging by far award goes to the Land Rover Defender. Never made a mistake as early as step three as I’m quite acquainted with Technic, but the gear box did me in as it took three rebuilds to get it right without accidentally misaligning something or missing a gear along the way. Lego definitely learned from this one with G Wagon follow up which was significantly easier and less frustrating to assemble. As for repetition, Creator Expert Farris Wheel, and Grand Carousel had not only repeat stages but flimsy stability at certain points that could break apart if not careful.

  5. 11
    @frogreactor

    Technic Lamborghini Siam, I mounted the first differential in reverse… absolutely no way to fix it without starting over… D’oh

  6. 12
    @HandleyR

    Pre internet you didn’t have instructions for the alternative builds on the back of Lego sets so it was very satisfying to build them from just a picture 🙂

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