Rung is always present but seldom noticed, which works well for his tendency to silently collect information about people to use against them later. Rung is particularly small for a Cybertronian, standing at only five meters tall, but he's just as cruel as his fellow Autobots, even if he's better at hiding it. As part of his duties, he performs the mental assessments of all the members of the Lost Light, making sure to subtly crush any inkling of uncertainty about the Autobot's crimes.