LEGO NINJAGO 71864 Review: Why Kai and Cole's Combiner Vehicles Work as Toys

LEGO NINJAGO 71864 Kai and Cole's Combiner Vehicles puts a simple but effective rebuilding idea at the center of a 394-piece action set. JANG's LEGO Reviews calls the vehicles “near-perfect toys,” and the appeal is easy to understand: the box contains a red off-road buggy, a decorated motorcycle and a transformation feature that changes both models without asking builders to dismantle them completely.

Designed for ages 7 and up, the set connects to season 4 of NINJAGO: Dragons Rising and includes Kai, Cole and a villainous Ice Monster. The official US price is $39.99. Rather than relying on a single oversized model, set 71864 spreads its play across two distinct vehicles, three characters and a modular rear-section swap that creates two additional three-wheel configurations.

Video by JANG's LEGO Reviews. All video rights belong to the original creator.

Featured thumbnail is from the original YouTube video by JANG's LEGO Reviews. All thumbnail rights belong to the original creator.

Two LEGO NINJAGO vehicles with different roles

The buggy is the heavier half of the pair. It has an enclosed driving position, chunky off-road proportions and a shooter, giving Kai a vehicle that reads as fast but durable. The completed buggy measures more than 3.5 inches (9 cm) high, 7 inches (18 cm) long and 3 inches (8 cm) wide, so it has enough volume to feel substantial without becoming difficult for younger builders to handle.

Cole's motorcycle creates a useful contrast. It is narrower, more exposed and decorated with a banner and detachable golden swords. The gold details give the bike a ceremonial NINJAGO character while still serving as removable accessories. Side by side, the vehicles avoid the common problem of paired models feeling like differently colored copies.

The combiner feature is built for repeat play

The key function is a mechanical idea expressed through modular construction. Builders can detach and exchange the back sections of the buggy and motorcycle, producing two new three-wheel vehicles. The transformation is quick enough to repeat during play, and the new configurations still look intentional rather than like unfinished halves.

This is where JANG's description of the set as a strong toy is most persuasive. A good play function should be easy to understand, reliable after repeated use and open-ended enough to inspire experimentation. The rear-section swap meets those goals without introducing a fragile mechanism or requiring a long rebuild. Children can change the vehicles, compare the handling and invent a reason for the ninjas to reconfigure their machines during a chase.

The idea also invites extensions beyond the instructions. A custom builder could create more compatible rear modules: a cargo bed, a tracked unit, a rescue platform or a larger weapon section. By keeping the connection point legible, the set teaches modular thinking through play.

Three minifigures create an immediate conflict

Kai and Cole give both vehicles named drivers, while the Ice Monster provides an opponent. According to LEGO, this is the first appearance of the villainous Ice Monster character. Its white color scheme and molded head separate it visually from the warm red, black and gold of the heroes' machines.

Three figures are enough to establish a clear scenario straight from the box: two ninjas pursue or confront one powerful enemy. The Ice Monster may be outnumbered, but that imbalance also encourages the combined-vehicle idea. Kai and Cole can operate separately, swap modules or coordinate an attack, turning the construction feature into part of the story rather than a disconnected demonstration.

Building value in a compact 394-piece set

Set 71864 is not trying to deliver a collector-scale vehicle. Its strengths are clarity, durability and multiple ways to play. The buggy provides mass and a projectile feature; the motorcycle brings speed and blade details; the transformation doubles the number of recognizable vehicle arrangements. That is a dense play pattern for fewer than 400 pieces.

The model should also be approachable for its intended age group. The two-vehicle structure naturally divides the build into satisfying milestones, and the LEGO Builder app offers 3D instructions with zoom, rotation and progress tracking. Once complete, the models remain colorful enough for display, but the design clearly prioritizes hands-on interaction.

What vehicle MOC builders can learn from set 71864

• Create a standard connection point: compatible modules make one model the beginning of a larger system.
• Give each base vehicle a clear identity: the buggy and motorcycle remain distinct before and after swapping sections.
• Keep transformations playable: a fast conversion is more likely to become part of an ongoing story.
• Use accessories in more than one way: the golden swords work as decoration, character equipment and visual markers.

Final Thoughts

LEGO NINJAGO 71864 Kai and Cole's Combiner Vehicles succeeds by treating transformation as a repeatable play pattern rather than a one-time building trick. The two vehicles have their own silhouettes and functions, the three minifigures establish an immediate conflict, and the swappable rear sections create meaningful variation with very little friction. JANG's enthusiastic “near-perfect toys” verdict fits a set that understands its audience: it is colorful, sturdy, quick to reconfigure and ready to inspire custom modules long after the instructions are finished.

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Disclosure: This article was created with AI assistance and reviewed as an independent editorial spotlight. The featured video and thumbnail belong to their original creator.