Chip

Chip is a small, mauve, brown-eyed flying animal who debuts in Sonic Unleashed. He has a white mohawk on the top of his head, similar to his tail, has tiny white wings on his back and a green bauble on his neck. He was first seen in a Japanese manga adaption of Sonic Unleashed. In this, Sonic wakes up after Dr. Eggman's laser gun mutates him into a monstrous version of himself. Chip is seen lying on the ground nearby, and Sonic attempts to make sure that he is okay. Chip flies away, afraid at first, though he soon realizes Sonic is good.

Chip loses his memory when Sonic lands on him after he falls from Dr. Eggman's spaceship and follows Sonic on his adventure to help regain his memory (though it's later revealed that he actually lost his memory because he was awakened prematurely, just like Dark Gaia). Chip loves eating and always brings chocolate around with him, even offering some to those he thinks need it. Sonic even names him "Chip" for the chocolate chips on the ice cream he's eating at the time (stating, "I gotta call you something, don't I?"), which he immediately takes as his "name". He is optimistic and cheerful, but has a strange power he sometimes uses to help Sonic. He also has a dark secret hidden in his memories.

Light Gaia is Chip's real name. Born in the beginning of time, Light Gaia is the opposite of Dark Gaia, and is the representation of light, day, and rebirth. He awoke when Dr. Eggman split the world apart with his beam. Due to the awakening, he lost his memories, but regains them when Sonic restores the sixth of the Chaos Emeralds.

His purpose is to put the world back together when Dark Gaia destroys it.

To defeat Dark Gaia, he creates the Gaia Colossus out of the seven Temples of Gaia. In the end, when Dark Gaia is defeated by Super Sonic and resealed within the Earth's core, Chip throws Sonic back to the surface and is sealed within the planet along with Dark Gaia. When Sonic comes to, he sees Chip lying unconscious on the ground, similar to their meeting, but it turns out to be an illusion, though Chip's necklace isn't. Sonic puts the necklace on as a bracelet as Chip assures him telepathically that he will never forget him, and that he will always be with Sonic, a part of the Earth he walks on.

Personality
Chip loves chocolate, which he carries throughout the story. He also offers many people a chocolate bar when he meets them. He loves food a lot, as seen in one cutscene in Apotos; Sonic is trying to talk to him, but he is distracted by an ice cream stand and completely ignoring him. When they work with Tails to save the kidnapped Professor Pickle, he is mostly concerned that the Professor might be starving to death, though Tails assures him that Eggman is feeding him; even Eggman isn't that cruel. Chip is playful and somewhat goofy. Before a boss, he will act threatening and scary (a contrast to how he isn't, as seen in Sonic: Night of the Werehog, where he is genuinely terrified of the ghosts in the mansion that he and Sonic visit and even faints dead away after Sonic teasingly scares him with a flashlight). Chip just might be the only person who can annoy Sonic.