HGUniversal Century

RX-78AL Atlas Gundam (Gundam Thunderbolt ONA Ver.)

An amphibious oddball that moves better than most HGs twice its price.

MechaGrade Score

3.9/5

Atlas Gundam (Gundam Thunderbolt ONA Ver.) · 1/144 · 2017

GradeHG

Scale1/144

Released2017

Runnersn/a

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The verdict

This is one of the best-moving HG kits I have built, full stop.

Bandai gave Io Fleming's Atlas Gundam a triple-jointed neck, ball-jointed sub-legs, and hip and knee travel that lets it hold genuinely dynamic poses without a single polycap in sight. The catch is quality control. A few of my joints felt tight enough to worry about stress marks, and the hands are the weakest link on an otherwise excellent frame.

Best for: Thunderbolt fans and HG builders who want serious articulation without jumping up to Master Grade

The full review

What it is

The Atlas is Io Fleming's amphibious prototype from Gundam Thunderbolt, and the kit leans hard into that identity. Those two ball-jointed sub-legs at the waist are the star of the show, they swing, splay, and lock into a dozen positions that make the suit look like it is mid-dive or mid-launch depending on how you pose them. The core frame moves beautifully too: triple-jointed neck, double-jointed knees, a waist that spins fully around. I spent more time posing this kit than most HGs I own because it kept surprising me with a range I did not expect at this price point and this part count.

The catch

The hand-to-wrist connection is soft, mine did not want to hold the beam saber at a confident angle without some fiddling, and more than one builder online reports the same complaint. A handful of parts (the globe joints on the elbows and legs particularly) are molded in colors that need stickers rather than being color-separated in plastic, and getting those stickers to sit flat on curved surfaces takes patience. There are also scattered reports of brittle plastic on certain sprues developing stress marks or hairline cracks during assembly, so go slow on the tighter ball joints and do not force anything.

Who it's for

Grab this one if you like the Thunderbolt aesthetic, want an HG that can actually hold a dynamic underwater or mid-flight pose, or just want proof that HG-line engineering has come a long way without polycaps. Skip it if you want a fuss-free weekend build, the sticker work on the joints and the occasional brittle sprue mean this rewards a careful, unhurried builder more than a first-timer. If you are new to the hobby, an EG or a simpler HG will treat you better; if you have a few kits under your belt, the Atlas is a rewarding step up in what an HG frame can do.

The build story

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

Gate placement is mostly clean and the eleven runners go together fast, this is not a long build. The globe joints on the elbows and legs are where you need to slow down, both because the parts are small and because the accompanying stickers do not want to lie flat on the curve. I would nip and test-fit each ball joint before committing rather than forcing anything home, a few builders have reported cracking on the tighter sockets.

The engineering payoff is real. The sub-legs alone justify the kit, they rotate and splay on spherical joints and genuinely change the silhouette between a grounded pose and a diving one. Combined with the triple neck joint, full waist rotation, and knee double-joints, this frame has more expressive range than most kits at this scale and price. The accessory loadout, a railgun, two assault rifles, a blade shield, and twin beam sabers, gives you enough to build out an actual battle diorama rather than a static shelf pose.

Lore & trivia

01The Atlas Gundam was funded by the Moore Brotherhood and prepared by Monica Humphrey for the classified Operation Thunderbolt in the Gundam Thunderbolt storyline
02Its pilot Io Fleming was a One Year War veteran who previously flew the FA-78 Full Armor Gundam, and came from the family that founded Fleming Industry
03The suit's watertight Globe Joints were developed by the Earth Federation using amphibious mobile suit technology reverse-engineered from Zeon designs
04In its debut combat use, the Atlas intercepted a kamikaze Komusai launched at the assault carrier Spartan and bisected it with a beam saber