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RX-121-3C Gundam TR-1 Hyzenthlay



Unit Type

Prototype All-Purpose Mobile Suit




Model Number
  • RX-121-3C
Namesake Hyzenthlay
Developed from

General Characteristics

  • Minovksy Ultracompact Fusion Reactor
Pilot Accommodations
  • pilot only (in panoramic monitor/linear seat cockpit in torso)
  • 2 x vulcan gun
Special Equipments and Features
  • Sub arm unit
    • Booster Pod
Optional Equipment
  • Long Blade Rifle
    • 90mm Machine Gun

The RX-121-3C Gundam TR-1 Hyzenthlay is a concept Mobile Suit from the Gundam Universal Century timeline. Appearing in the Advance of Zeta: The Flag of Titans.

Technological and Combat Characteristics

The RX-121-3C Gundam TR-1 [Hyzenthlay] is considered as the final unit of the Hazel series, which uses components from the RX-124 Gundam TR-6 (Advanced Woundwort) and the RX-121-2A Gundam TR-1 (Advanced Hazel). As a result, virtually all the RGM-79Q GM Quel parts that remained in the Hazel are replaced by newly constructed enhancement parts. Because it uses the unmodified upper body of the Woundwort high-speed fighter form, its head, chest, and shoulders are very different in shape from those of the Hazel. This substitution is possible because the upper body of the TR-6 is the same size as the Hazel's Primrose escape system. It appears that the TR-6 components are actually installed on top of a RX-121-2 Gundam TR-1 Hazel Owsla torso, since the head and chest structures of the Owsla are visible underneath the new enhancement parts. The TR-6 booster pod is likewise connected to the same movable booster pod used by the original Hazel. Finally, the chest and arms of the base TR-6 mobile suit are attached to the waist of the Hyzenthlay as a sub arm unit.


  • Vulcan Guns
The Hyzenthlay is equipped with a pair of vulcan guns on its head, effective for shooting down missiles or enemy aircraft.
  • Beam Sabers
The only fixed armament of the suit are two beam sabers for close combat.
  • 90mm Machine Gun
A Handheld Machine Gun used to shoot down enemy mobile suits. The Machine Gun uses magazine rounds and they can be swapped with a fresh one if its empty.
  • Long Blade Rifle
The most unique weapon of the Hyzenthlay which is first used by the RX-124 Gundam TR-6 (Woundwort). As the long blade rifle is used as a regular beam rifle, it also doubles as a shield to protect itself from enemies. It can also produce a heat blade, allowing it to cut down enemies when there's no time to deploy its beam sabers.

Special Equipment & Features

  • Sub arm unit
A Pair of Sub-arm units were installed into the Hyzenthlay. The sub arm unit, one of the devices intended to connect to the multi weapon latch, contains secondary arms folded away inside what looks at first glance like extra skirt armor. These sub arms allow the Hazel to carry a beam rifle or other weapons even when both its main arms are obstructed by the attachment of shield boosters. The sub arms can also be used to wield secondary weapons like beam sabers, or to replace energy packs when both main arms are holding weapons.
  • Booster Pod
The Hyzenthlay uses the same booster pod similar to the Regular Hazel.


The RX-121-3C Gundam TR-1 (Hyzenthlay) is supposed to be the final unit of the Hazel Units developed by the Titans and will give them the control they desire in the battlefield from the Federation. But with the destruction of the Advanced Hazel and the Woundwort during the Gryps Conflict, the MS is not developed.


Notes & Trivia

  • The Hyzenthlay is named after the character Hyzenthlay (fictional rabbit character from Watership Down).



External Links

Template:Early Universal Century Mobile weapons

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