RX-121-2A Gundam TR-1 [Advanced Hazel]

RX-121-2A Gundam TR-1 [Advanced Hazel] is an upgraded Titans Test Team mobile suit from Advance of Zeta: The Flag of Titans. Based on the Hazel Custom, it adds enhanced equipment and TR-series development parts as part of the Titans’ experimental mobile suit programme. It is associated with test pilots such as Wes Murphy and the Titans Test Team.

The Advanced Hazel keeps the GM Quel-derived TR-1 frame but adds a more powerful sensor head, booster pod equipment and optional weapon systems that foreshadow later Hazel and TR-series upgrades. Its design is a key example of Advance of Zeta’s layered experimental style, where practical Federation frames are gradually turned into highly specialised prototype platforms. It is a popular machine for builders who enjoy Titans development history and modular expansion parts.