Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.
Doo Bot is a character that appears in Sonic Underground. She is a robotic hairdresser and the proprietor of Perminator Salon.
Doo Bot had hypnotized her patrons into revealing secrets to her. These messages were then sent to Doctor Robotnik via cassette tape. She apparently did this job against her will.
At the end of her debut episode, Doo Bot was used to hypnotize Robotnik, Sleet, and Dingo into forgetting the information that they collected from the tapes.