Chao, Sega Wiki

A Chao is an artificially intelligent, virtually generated lifeform from the Sonic the Hedgehog series. Their role in the games is to be raised by the player in mini-games, similar to Tamagotchi. Chao are somewhat complex, responding to stimuli; they have moods, they require food, and they can be loving or fearful. The word Chao is a pun on Chaos, a word commonly used in the Sonic series. Chao made their first appearance in Sonic Adventure for the Sega Dreamcast, later in Sonic Adventure 2, and

Fan Casting Christine Cavanaugh as Chao in Sonic the Hedgehog

Sonic Advance - Wikipedia

Sonic Adventure 2 - Wikipedia

Moon Chao in Sonic Adventure 2

Sonic Shuffle - Wikipedia

Sega Superstars - Chao Island

Charged Chao, Sonic Wiki Zone

Sonic Adventure 2 Battle Sonic, Sonic adventure, Sonic adventure 2

Bright Chao - Chao Island Wiki

Electric Chao, Sonic Wiki Zone