游戏中有各总各样的敌机和武器，敌机按一定的几率出现，玩家消灭敌机后可得分数奖励，达到一定分数后会升级，游戏难度随着玩家级数的增加而增大-There are various games on a wide range of aircraft and weapons, according to a certain probability of enemy planes appeared, the elimination of enemy players can get scores of award