Born from Anaheim Electronics’ ambitious Zeta Project, the Hyaku Shiki traces its origins to the failed transformable prototype MSN-001 Delta Gundam. Though the movable frame design was groundbreaking, flaws in its transformation system forced the project to be abandoned.

When the AEUG obtained the RX-178 Gundam Mk-II, its refined movable frame technology became the foundation for the redesigned Hyaku Shiki. The result was a high-performance, non-transformable mobile suit that embodied reliability and adaptability. Its developer, Professor M. Nagano, named it “Hyaku Shiki” (Type 100), envisioning a design that could stand the test of a hundred years.