Zeta Gundam is quite popular, because it can transform into a plane like "Wave Mode". Many of the model kits made were floppy and not fun, because the joints would loosen as you transformed it, this was the case with the MG, RG, and other older kits. The recent HGUC 1/144 kit resolved this by taking away the perfect transformation, so it required parts-forming. The Metal RS Zeta Plus C1 really nailed it. The joints are diecast and tight! Actually so tight it is scary the first time you transform it. It poses awesome and sturdy in both modes. I hope Bandai will make a Metal RS in the standard Zeta Gundam colors as well.