A pokemon that can be obtained by evolving a Porygon 2. It evolves from Porygon 2 when traded holding a Dubious Disc. There was a giveway on Novemeber 11, 2011, that gave everyone who entered a shiny Porygon Z, named "?". This eventmon held an item, also by the name "?", that gives a pokemon holding it pokerus. "?'s" nature is 1111111 and is level 111.

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