User blog comment:Henshin1971/The reason why Jumborg 9 called 'Jumborg 9' in Jumborg Ace series/@comment-1733689-20130905134151

Bottom row

Aztecaser, Izenman, Izenborg,  Koseidon, Gridman, Gridman Sigma, ???, Mirrorman Reflex, WoO

Izenborg, as Lamango knows, was half anime and Tokusatsu and Izenman is when Ai and Zen merge but the merge is man sized.