Porygon-Z is a modification of Porygon2. Porygon-Z appears similar to Porygon2, albeit darker in color. Most notably, its head is detached from the body and upside down, much like Porygon's legs, with no visible neck and yellow eyes with a dartboard pattern. Its bill is more round, and doesn't curve down as it did in its Porygon2 stage. Its legs are now wing-like, and its posture resembles that of a hummingbird. The tail is a little plumper, with the blue pattern on its chest no longer being isolated and now connecting to its legs/wings.