Balloons are the sixth overall troop unlocked in the Barracks.
Balloons are “promoted” Wall Breakers that now attack from a hot air balloon. They drop bombs on the villages with a large area splash damage, but can be easily taken out by any anti-air defenses (such as the Air Defense).
Balloons are slow-moving aerial units that do devastating amounts of splash damage to ground targets.
They are the slowest-moving and slowest-attacking troops in the game.
Balloons drop to the ground then explode, dealing additional damage when destroyed.
Balloons prioritize defensive structures above all other targets, and will bypass all other types of enemy buildings and troops while any defenses remain on the battlefield. This is true even if they are under attack by enemy Clan Castle troops, heroes or Skeleton Trap skeletons. Note that like all troops that prioritize defenses, Balloons do not consider the Clan Castle to be a defense regardless of whether or not it contains enemy troops, but do consider the defending Grand Warden to be a defensive building.
Once all defenses are destroyed, Balloons become like any other troop with no preferred target; they will attack the nearest building to them regardless of type, and will turn and attack enemy units if they become aware of any nearby.