Super Mario

Mario Kart – Spiny Shell

The shell that ruins your first place finish, now sitting still enough to actually admire

Brick Rated Score

4.0/5

Set 40787 · 2025

Pieces234

Minifigsn/a

Year2025

Set number40787

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The verdict

I love that LEGO picked the blue shell for this one, out of every item box in the game it is the one everyone groans about, and turning it into a chunky 10 by 10 centimeter display piece feels like a joke only Mario Kart players will get.

This is not a set you build for a play feature, there is no launcher, no wheels, nothing to send flying across the table. It is a sculpture, and once I accepted that, I actually enjoyed how deliberately it comes together in layers. Get it if you are chasing the full Mario Kart shelf lineup or you just want a weird little trophy from the game, skip it if you were hoping for anything interactive.

Best for: Mario Kart fans building out a display shelf alongside the kart sets

The full review

What it is

I'll be honest, when I first heard LEGO was doing a Spiny Shell set my mind went straight to some kind of launching mechanism, because that's the whole point of the thing in the game. It doesn't do that. What it does instead is build up in rings and spikes until you're holding a proper little sculpture of the shell, about 10 centimeters across, and there's something satisfying about how the curve comes together piece by piece rather than in one big molded shell half.

The catch

Here's the honest caveat, at 234 pieces this is a quick sit-down build, not a weekend project, and if you were hoping for a minifigure or two to go with it you'll be disappointed, there aren't any. It's also worth knowing this wasn't a normal retail set, LEGO put it out through the Insiders rewards program in 2025 rather than selling it on shelves, so getting one meant redeeming points during a specific window rather than just buying it outright.

Who it's for

If you're the kind of Mario Kart fan who already has the kart sets lined up and wants the shell that torments everyone in eighth place sitting next to them, this scratches that itch nicely. If you wanted a playable model or a set with figures to pose, this isn't it, and I'd point you toward the actual kart sets instead.

The parts story

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

The build itself moves in bands, you start with a rounded core and keep layering curved slopes and wedge pieces around it until the spiky blue shell shape locks into place. It's a satisfying kind of construction because so few of the parts are just structural filler, almost everything you place is doing visible shaping work, which is rare for a set this size.

There isn't a wild new mold here the way some Mario sets get, the appeal is really in how efficiently the standard curved and sloped pieces get stacked to fake a smooth, almost organic shell surface. For a 234 piece build with zero minifigures, that efficiency is really the whole value proposition, you're not paying for a figure or a play feature, you're paying for a clean little sculpture that nails the source material.

Brickset lists the finished model at roughly 10 by 10 by 10 centimeters, which tracks with how substantial it feels once it's off the instructions and sitting on a shelf.

Fun facts

01It was released through the LEGO Insiders rewards program starting May 15, 2025, rather than as a standard retail purchase.
02The set was designed by LEGO designer Carl Merriam.
03It carries a strong 4.4 out of 5 rating on Brickset from over 50 user ratings.
04It has zero minifigures, making it one of the only Mario Kart wave releases built purely as a display sculpture rather than a scene or vehicle.