RX-124 Gundam TR-6 [Haze'n-thley II-Rah]
A P-Bandai fever dream that combines two kits into one genuinely huge, genuinely weird area-dominance monster.
MechaGrade Score
Gundam TR-6 [Haze'n-thley II-Rah] · 1/144 · 2020
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I came away impressed with how much kit Bandai crammed into this box, and a little sore-fingered from getting it there.
The Haze'n-thley II-Rah is the combined form of the Haze'n-thley II and the G-Parts Hrududu II, so you are really building two separate kits and then marrying them into a mobile suit that towers over most of your shelf, taller even than HGUC Fenelope. It rewards patience with a genuinely unique silhouette and three distinct configurations, but the transformation and the joint work ask a lot for an HG.
Best for: AoZ completionists and transformation fans who want a shelf centerpiece, not a first kit or a quick weeknight build
What it is
This is a Premium Bandai exclusive built around the AoZ concept of modular mobile suits: the base Haze'n-thley II mobile suit docks with the Hrududu II G-Parts unit to become the II-Rah, a bulkier, more heavily armed combined form built for sustained area control rather than a quick skirmish. Out of the box you get the mega particle gun, a composite shield booster, and a display stand, plus the parts to run the top and bottom fighter mode from the base kit and the combined mobile armor mode on top of that. Building it feels like assembling three kits worth of value, and the moment the two halves click together into the towering II-Rah stance is the payoff builders talk about most.
The catch
The size and the gimmick both cut against pure build comfort. Reviewers consistently flag weak articulation through the torso and legs once everything is locked into combined mode, since so much of the engineering budget went to the transformation and combination joints instead of poseability. The transformation sequence itself is described as complicated, not a quick five-step flip, and getting the halves to seat cleanly takes a careful hand. It is also a P-Bandai exclusive, so it runs above standard HG pricing (around 6,490 yen at retail) and is harder to find than a mainline release, with secondary market prices climbing further.
Who it's for
If you already like the AoZ side stories or you collect combining/transforming mecha and want something that actually earns the word massive on a 1/144 shelf, this is worth tracking down. It is a satisfying multi-stage build for someone who enjoys puzzling through an unconventional kit rather than clipping a straightforward biped. Skip it if you want a poseable action figure for dynamic photography, want your first kit to be simple, or are not willing to pay P-Bandai prices and hunt secondary market listings. As a display piece and a piece of AoZ history it earns its shelf space; as a flexible action kit it does not.
The build story
What the build is actually like, and the engineering worth knowing about.
You are effectively building two kits back to back, the Haze'n-thley II mobile suit and the Hrududu II G-Parts unit, before you ever get to combine them. Gate placement and cleanup are standard HG fare on the individual runners, nothing brutal, but the sheer part count from running two kits in parallel adds up and the combination step itself demands care so the halves seat and lock without stressing the joints.
The standout engineering is the modularity itself, three real configurations (solo MS, fighter mode, combined mobile armor) built into a single retail box, which is unusual generosity for the HG line. Weapon and accessory loadout is strong, with the mega particle gun and composite shield booster giving the combined form real shelf presence, even if the price you pay is articulation once everything is locked together.
Lore & trivia
- 01The Haze'n-thley II-Rah is formed by docking the Haze'n-thley II mobile suit with the separately designed G-Parts unit Hrududu II, and the combined system is managed in-universe by the BUNNyS operating system.
- 02It appears in the AoZ (Advance of Zeta) photonovel The Flag of Titans and is classified in-universe as a strategic 'area dominance machine' rather than a standard frontline unit.
- 03With an additional waist-mounted general-purpose booster it can reconfigure again into the RX-124HS cruising form for long-range deployment, a fourth configuration beyond the three built into this kit.
- 04This HG released as a Premium Bandai exclusive in February 2020 and was later reissued, reflecting how in-demand the AoZ combination kits became after launch.
What other builders say
This write-up is grounded in real reviews and builder discussion, not just one opinion. A few worth reading:
- Gundam Wiki (Fandom) - RX-124 Gundam TR-6 [Haze'n-thley II-Rah]
- Mecha Catalogue - I Pre-Ordered Two! HGUC Gundam TR-6 [Haze'n-thley II-Rah]
- Gundam Kits Collection - P-Bandai release info
- P-Bandai HGUC RX-124 Gundam TR-6 [Haze'n-thley II Rah] Review (YouTube)
- Sketsa Langit - Gunpla #58 HGUC TR-6 Haze'n-thley II Review
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