Each and every custom robo commander belongs to a commander class. This class is directly determined by one's experience and skill. There are seventeen total classes. Each one, except for 'King,' is subdivided into nine levels. You will advance your commander class by gaining experience from winning battles. You receive more experience if you beat the opponent while keeping your own robo's damage to a minimum, in a short period of time, and finally with high damage combinations or combos. You won't gain experience if you use any illegal or millitary part on your robot, but you will still get the money.