Dr. Kojiro's seventeenth robot master, Traffic Man (short for "Traffic Light Man") was based on the themes of traffic control and the childhood game of red light/green light. Interestingly, Traffic Man's mouth has been built into a police whistle. So he can speak and whistle. The lights on his body alternate with which are actually lit up periodically, with both red and green lasting 12 seconds each and yellow only lasting 6 - this actually alters his battle strategy: