While playing the game on WiFi, notice that there is a letter near your name. When you first start playing on WiFi, the letter will be at Z. The letter represents your rank as a pilot, with "Z" being the lowest rank and "A" the highest rank. The only way to increase your rank is to collect the stars from enemy ships that have been destroyed. Each star gives you about 8 to 9%. When you reach 100%, your letter will go up to the next level. However, the only way for you to get all the experience from each star is to be in first place after each match. If you finish in second place, you will not get the experience.