a robot chao, he is the hint system in sonic adventure 2 he can fly with a propeller in his head if you pick him up he will say things like "If you let me go, I'll tell you how many Omochao there are." and
"ahh ahh, help me!"
The phrase 'Omochikaeri' means 'I'm going to take you home.' or 'I'm getting you for take-out.' This phrase is used by Rena Ryuugu of Higurashi no Naku Koro ni, one time Keiichi, and some times that weird pedophile doctor of Satoko's and Rena's that I forgot what his name is.
Omachonu is an Igala name which means 'Child is king' it is usually given to Princes. People who bear this name are characterized by high intelligence, critical thinking and empathy.
A robotic version of the animals called Chao in Sonic the Hedgehog games. His main function is to serve as a tutorial character and also provides hints in game stages.
He/she has appeared in Sonic Adventure 2, Sonic Heroes, Sonic Advance 3, and Sonic Riders.