Chi Chi is a cream-colored goat. He has pink cheeks and two tan horns and a bushy tail. Unlike Gumball, he wears red shoes, a tan shirt and brown shorts. He also has the same rounded eyes like Gumball.
Ribbit is a turquoise blue frog. Unlike Darwin, he wears purple shorts and doesn't sport a fin tail like Darwin, and his hands and feet are frog-like. He also has the same rounded eyes like Darwin.
Chi Chi and Ribbit first appeared checking out the exotic food section and started copying everything Gumball and Darwin do. As the Wattersons were driving home they noticed a bunch of doppelgängers, including Chi Chi's parents who copy Nicole and Richard as well.
Gumball checks out their website, The Incredible World of Chi Chi, stars from China, and sees some videos that they were imitating their adventures like the Wattersons did in order to make some money, which is unlawful. The whole Watterson family storms out of the house to confront their doppelgängers. The family fights their doppelgängers (except Anais, who has no doppelgänger of herself). Despite trying to drive their doppelgängers away, Chi Chi and the other doppelgängers continue to copy everything the Watterson family does. Now fed up, they drive a truck with a leaking gas container with a trail of fire following them while driving towards an unfinished bridge. Anais was able to unhook the gas container just before it explodes and stop inches from the bridge.
The Wattersons survive, and the doppelgängers truck comes right at them, and since they don’t have a doppelgänger sister, Chi Chi, Ribbit, and their parents came plunging off the bridge and into the ditch below, and the gas tank explodes, though they managed to barely survive. As a result, their website had no trace left and were left too traumatized to be on the internet anymore. It is unknown what had happened to them afterwards.
- They are based on the characters from Gumball's Chinese rip-off Miracle Star.