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 The replacements at the end of the second season are actually "Uchikoma" (Unless I'm missing a syllable). They look almost exactly like Fuckikoma except for the Tachikoma style legs and the single "eye" in the front (a sphere type also used on the Tachikoma). There is also an additional "eyeball" on the underside of the pod just like the Tachikoma had.