In Custom Robo (GameCube), a Class-S License is the unofficial license above Class-A. Technically, Class-A is the highest rank, but fellow commanders will recognize a Class-S if three other Class-S commanders endorse him or her. How the first three Class-S commanders came to be is unknown. This small, elite group of talented commanders possesses skills and mental prowess far beyond those of normal commanders. The government disavows knowledge and the legitimacy of this license. In Custom Robo (GameCube), Harry, Marcia, and the Hero all earn a Class-S License.