HGUniversal Century

RX-78-3 Gundam

The Revive-mold RX-78-2 in a stealthy gray and purple coat, and it poses better than the original ever did.

MechaGrade Score

4.1/5

Gundam · 1/144 · 2015

GradeHG

Scale1/144

Released2015

Runnersn/a

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The verdict

This is the best cheap way to get a G-3 on your shelf, because it is quietly one of the best HG frames Bandai has ever built.

I went in expecting a simple recolor and came out impressed by how far the base mold has come. The double-jointed knees and elbows plus the free-spinning torso ball joint make this thing hold action poses an HG has no business holding. The only reason it is not scoring higher is that it is still an HG at heart, so the payoff is engineering and pose range, not surface detail.

Best for: builders who want the RX-78-2 silhouette in its stealthier G-3 colors without hunting down an event-exclusive premium

The full review

What it is

This kit is the 2015 HGUC release of the RX-78-3, built on the same Revive-era frame Bandai used for the acclaimed RX-78-2 Gundam reissue, just recolored into the G-3's gray and light purple scheme with a straight face and no gimmicks. Snapping it together felt like assembling a kit two grades above its price. The hinged neck ball joint lets the head actually look up, the torso rotates a genuinely free 360 degrees, and the knees and elbows are double-jointed enough to hit deep dynamic poses without the limbs popping out. For a suit best known as a novel-only footnote, this kit treats it like a flagship, and I respected that.

The catch

The color separation leans on Bandai's usual HG shortcuts. The eyes come as a one-piece sticker and the crotch V is a sticker too, though the red chest vent is molded as an actual part rather than a decal, which is a nice small upgrade over older HGUC kits. Being a simple redeco, there is nothing new here mechanically, no magnet coating gimmick despite that being the whole point of the G-3 in the fiction. And the torso's full rotation is undercut in practice, the crotch piece bumps into the lower torso block before you get a true 360, so twisting poses stop just short of what the frame promises.

Who it's for

Grab this if you want the classic RX-78-2 shape in a less common colorway and you care more about how it poses on a shelf than about surface panel lines or LED gimmicks. It is also a smart pickup for anyone who already owns the standard RX-78-2 Revive and wants a running-mate in a different scheme without doubling up visually. Skip it if you specifically want the magnet coating backstory represented mechanically, or if you want more part-for-part detail than an HG frame can offer, in which case the MG G-3 release is the better target for your money.

The build story

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

Gate placement follows the same Revive-mold runners as the standard RX-78-2, so cleanup is quick and nub scars land in forgiving spots on the limbs and torso. Parts click together with real confidence, nothing loose or rattly out of the box, and the whole build goes together in an afternoon without needing glue or panel lining to look presentable.

The standout is the frame's engineering for its price band. The hinged neck joint and the double-jointed elbows and knees let this kit hit low kneeling poses and overhead sword stances that plenty of MG kits struggle with. It ships with a beam rifle, shield, hyper bazooka, and two beam sabers, a full weapon loadout that matches the RX-78-2's classic kit but in the G-3's own colors, which is real value for an HG price point.

Lore & trivia

01The RX-78-3 first appeared in the Mobile Suit Gundam novelization, not the TV anime, cobbled together from salvaged RX-78 parts at Jaburo after two of the three original prototypes were destroyed during the attack on Side 7.
02In the novel continuity, Amuro Ray piloted the G-3 as a replacement Gundam and was eventually shot down alongside it during the Battle of A Bao A Qu.
03The G-3 was conceived as a testbed for magnet coating technology that would later be applied to the RX-78-2 and future RX-78 series units, giving it roughly twice the maneuverability of the standard Gundam in its background fiction.
04Its gray and light purple paint scheme was explicitly meant to lower the suit's visibility, a deliberate departure from the RX-78-2's bright primary colors.