Eye Guy is an Opticoid (a play on
optical) from the planet Sightra (a play on
sight).
Eye Guy is the first alien to have been unlocked off-screen, how he was obtained is never addressed. As his name says, Eye Guy's upper-body is covered in eyes, though he ironically has no eyes on his head, which consists of a mouth and a very large pair of bat-like ears. From these eyes, Eye Guy can fire numerous energy beams; the eyes can be merged to create different effects,like a freezing beam; and by merging every eye into the large eye, he can fire a stronger energy blast.
His only appearance in the original series itself was in "Ben 10 vs. the Negative 10: Part 2", where Ben was attempting to prevent the Negative 10 from stealing the Sub-Energy. He also was introduced in the first alternate opening of "Ben 10: Secret of the Omnitrix" version, in a fight with Doctor Animo.
In Omniverse, 11 year old eye guy is the same as 16-year-old Eye Guy who looks almost the same as the original series, with his central eye returning, but now the white circles on his pants have been replaced with green stripes and his belt is now green with a white stripe. He wears green cuffs and has less eyes covering his body although they are bigger. He has also gained eyes on his hands. He has a green belt where the Omnitrix symbol is located.
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