Dompan is an enemy robot that appears in Bright Man's stage in Mega Man 4. They don't really pose a threat since they just waddle from one end of the screen to the other. If Mega Man turned out the lights by destroying a Watton, he can restore them by destroying a Dompan. When a Dompan is shot, it launches a firework from the pipe on its head which brings light back to the stage.