Yacker

Yacker is a main character from the video game Sonic Colours. He acts as ambassador for the Wisps when Sonic encounters the creatures at Dr. Eggman's Incredible Interstellar Amusement Park. Throughout the game, Yacker accompanies Sonic as he progresses through the park and informs him of Eggman's abuse of the Wisps.

Overview
Yacker is a White Wisp with a rounded head/body, a single red-hued eye and three tentacles. Atop his head are two antennae and a curly strand of hair which distinguishes him from other White Wisps.

Yacker doesn't communicate well verbally, his language consists entirely of a series of bizarre warbling sounds. He can understand English very well, however, and communicates primarily through body language, making various gestures to express happiness, sadness, annoyance, or to direct Sonic to other locations.

Like all Wisps, Yacker is sociable and friendly. He appears to be very playful and eagerly helps Sonic and Tails throughout their adventure in Eggman's amusement park.

History
In Sonic Colours, Yacker first encounters Sonic the Hedgehog after the Blue Blur rescues him from Dr. Eggman's robots. Yacker is grateful for Sonic's help, although Sonic has trouble understanding him as Yacker's language consists of bizarre chattering noises. Sonic and Yacker later rendezvous with Tails who attempts to develop a translation program on his portable computer. After tinkering for some time, Tails succeeds in making a basic translation system and deciphers that Yacker and his race are being used by Eggman (whom Yacker refers to as "Baldy Nosehair") for an evil purpose (which was originally translated as "evil aquatic mammal" or "porpoise").

As Sonic, Tails and Yacker explore the amusement park, they find that Eggman is siphoning the Wisps' Hyper-go-on power tand converting the creatures into Nega-Wisps. The harvested Hyper-go-ons are being used to fuel Eggman's new mind-control ray which the doctor plans to fire upon Earth and brainwash the entire population at once. Sonic, with the aid of several freed Wisps, destroys Eggman's mind-control cannon and separates the Wisp planets from the Interstellar Amusement Park. With Yacker and the Wisps at his side, Sonic then battles Dr. Eggman's Hyper-go-on-powered Nega-Wisp mech, destroying it and foiling Eggman's plans once more.

As the amusement park explodes, a black hole is generated at its core which begins to swallow the station. Sonic is unable to outrun it, but Yacker and the Wisps manage to save him and carry him back to his world. Yacker then turns the Nega-Wisps back to their original forms and together they use their power to nullify the black hole. Afterwards, Yacker returns to Sonic and Tails to thank them for their help, gives both of them a high five, and leaves with the other Wisps and their planets.