(before the events of Dragon Ball Fighter Z and Dragon Ball super super heroes, and before the androids/cell saga. Vomi is a human before turning to an android she is a researcher on the red ribion army and learning the fighters to make stronger androids then ever, (if your thinking of turning to a super saiyan well you can but not super saiyan 2 or 3 or more then that) one day you were training alone until you have a feeling someone is watching you)

Vomi : *hidding on a bush