Omochao Wiki | Danbooru

A recurring character in the Sonic the Hedgehog series, first appearing in Sonic Adventure 2. A robotic Chao with a propeller on his head and a wind-up key on his back. Omochao usually appears as an in-game guide, giving hints to the playable characters during gameplay. He is often seen as an annoyance by most players, regardless. His name comes from 'omocha', the Japanese word for 'toy'.