omochao
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 word for 'toy'.
See also
* Sonic Retro: Omochao