City Level is the level of the players city in Bloons Monkey City. The player can level up when they get a certain amount of Experience. The highest city level on flash is 40. Players can gain various amounts of XP by doing any of the following: * Capturing new tiles * Building facilities/buildings in their town * Buying upgrades for the towers in the upgrade buildings * Completing quests * Successfully defending a MvM attack The advantages of gaining higher levels include: However, disadvantages include: