Super Heroes DC

Harley Quinn Cannonball Attack

A wild pink cannon truck carried entirely by its minifigure lineup.

Brick Rated Score

3.9/5

Set 70921 · 2018

Pieces425

Minifigs4

Year2018

Set number70921

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The verdict

I went into this one expecting a fun little vehicle set and came out mostly talking about the people inside it.

The cannon truck itself is a decent build with a neat rotating, elevating shooter, but it's Harley, Gentleman Ghost and Crazy Quilt that make me actually want this box on my shelf. If you collect Batman Movie minifigs or love Harley Quinn specifically, this one earns its spot. If you're purely after a satisfying vehicle build, I'd temper expectations a bit.

Best for: DC Super Heroes minifig collectors and Harley Quinn fans

The full review

What it is

This truck is pure Harley Quinn energy, all hot pink panels, a jailhouse door on the side, and a giant cannon barrel sitting where a normal truck would have cargo. The first time I got the cannon rotating and elevating on its little gear mechanism, I grinned, because it is a genuinely fun fidget once assembled. Popping the hood and doors open to peek at the engine detail is a nice touch too, the kind of small design choice that tells me the LEGO Batman Movie team was having fun with these vehicles.

The catch

I won't pretend the build itself is a showstopper. The wheels stick out from the sides instead of nesting into wheel arches, which throws off the profile a bit once it's finished, and the back half of the set (the jail cell and rat companion) reads more like padding than a second attraction. At 425 pieces for four minifigures, you're clearly paying a premium for the little people rather than the model, and depending on the market that day, the resale price reflects that heavily.

Who it's for

Get this one if you're chasing the Batman Movie minifig line or you just adore Harley Quinn as a character, because Gentleman Ghost alone is worth a look and this remains the only way to get him. Skip it if you want a beefy standalone vehicle build to sink an evening into, since the truck, fun as the cannon is, wraps up faster than you'd expect.

The parts story

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

Building the Cannonball Truck moves quickly, most of an evening rather than a weekend, with the cannon's turntable and lift mechanism being the one part that actually makes you slow down and pay attention. Everything else, the cab, the jail door, the little engine bay, snaps together in fairly straightforward chunks, which makes this a good one to hand to a younger builder who wants to feel like they conquered something without getting lost in it.

The real story here is the minifigures. Harley Quinn, Gentleman Ghost and Crazy Quilt are exclusive to this set, and secondary market listings consistently show the figures carrying the bulk of the set's value, not the parts. There's a fun printed rat piece running around too, a small detail that Batman Movie sets liked to sneak in. Piece count per dollar isn't the story with this one, it is entirely about who's riding in that truck.

Fun facts

01This set retired in December 2018, about a year after its December 2017 release, and its secondary market value has climbed roughly 60 percent since then.
02Three of the four minifigures, Harley Quinn (this version), Gentleman Ghost and Crazy Quilt, are exclusive to this set and don't appear anywhere else.
03The truck's cannon can lift and rotate, letting it actually fire a minifigure-launching shot, one of the more playable vehicle functions in the Batman Movie line.
04Fan reviewers have specifically flagged Crazy Quilt's helmet and shoulder pads as a miss on comic accuracy, even while praising the rest of the lineup.