Ninjago

Jay's Titan Mech

The tallest, slinkiest blue mech Ninjago has ever handed me, and it has actual knees.

Brick Rated Score

4.1/5

Set 71785 · 2023

Pieces798

Minifigs5

Year2023

Set number71785

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The verdict

This is the mech that made me rethink what a Ninjago robot could look like.

It is tall and slim and unmistakably drawn from 90s anime, all blue, white and gold, and the fact that it has real bending knees is quietly a big deal. I will be honest that the build is over faster than 798 pieces should allow, and the arms and legs do not swing around the way the smaller Ninjago mechs do. But as a display piece with five figures and a giant buildable sword, it is a lot of set to love.

Best for: Ninjago fans and mech collectors who want a display figure with real presence rather than a wiggle-everything play toy

The full review

What it is

The first thing that got me about Jay's Titan Mech was the silhouette. Ninjago mechs usually read as chunky little battle bots, all shoulders and stomping feet, and this one is the opposite. It stands tall and lean in blue, white and gold, with an angled torso and long legs that lean hard into the 90s anime robot look. It reminded me less of a toy and more of something you would see on the cover of an old mecha manga. And then I bent its knees. Actual working knees on a LEGO mech this slim is not a small feat of engineering, and the moment I saw it drop into a low stance I understood why the designer fussed over the anatomy the way he did.

The catch

Here is the part I have to be straight with you about. For a set with nearly 800 pieces, the build is over quickly, a little more than an hour if you keep moving. A lot of that is because the legs and torso use repeated paneling techniques that go fast once you find the rhythm, so it never quite gives you that slow, meaty afternoon a piece count like this hints at. The other honest caveat is play. To keep a figure this tall and this narrow standing up, the joints had to be firmed up, which means the arms and hips do not swivel and swing the way the tiny Ninjago mechs do. It poses beautifully for a shelf, but if you want a robot to march around the living room and throw punches, this is not that robot. At full RRP of $79.99 I would have told you to wait for a sale, which was easy to find while it was on shelves.

Who it's for

So who is this for. If you love Ninjago, or you love mecha design in general, this one earns its place on a shelf and then some. The color scheme is clean, the stance is dramatic, and the five figures give you a proper little scene with Jay and Nya facing off against a whole skeleton court. If you specifically want a fully articulated action toy that survives being flung around, or you were hoping the piece count meant a long evening of building, temper that expectation a little. It retired in December 2024 and has climbed well past retail on the secondhand market, so grabbing one now means paying collector prices rather than sale prices.

The parts story

What the build is actually like, and the pieces worth knowing about.

Building it feels front-loaded toward the body. You spend most of your time on the torso and legs, layering angled plates and panels to sculpt those slim anatomical forms, and there is a genuinely clever bit where the feet are constructed sideways to get the shaping right. It moves quickly, almost too quickly, but the techniques are the good kind of sneaky where you finish a section and realize how the curve or the joint was hidden. The knees in particular are the highlight of the assembly, a small mechanical triumph tucked into a set aimed at nine year olds.

The standout piece is easily the giant sword, which is a full sub-build using fresh brick shapes rather than one big molded blade, and it gives the mech real weight in hand. The skeleton figures come loaded with newer bone-styled weapons and accessories that are handy if you build Ninjago dioramas, and the blue, white and gold parts palette is useful for anyone doing custom mech work. Given how far past its $79.99 RRP the set now trades, the per-piece value was strong at retail and much less so today, so the parts story is a better reason to build it than to speculate on it.

Fun facts

01The Titan Mech was designed by Niek van Slagmaat, who leaned deliberately into 90s Japanese anime and manga mech styling rather than the usual chunky Ninjago look.
02It retired in December 2024 and its sealed value has climbed well past its $79.99 launch price on the secondhand market.
03Getting real bending knees onto a LEGO mech this tall and slim is rare, and reviewers repeatedly singled it out as the set's signature engineering flex.