🚁 The Double Helicopter booster doubles all the regular Helicopters on the game field, including those created through combinations.

🚁 Double Helicopters do not appear on the field and do not remove pieces by themselves like Bombs or Rockets. The application of this booster affects the functionality of the regular Helicopters already on the field or those created through combinations.

🚁 If at the beginning of the level you see two Helicopters flying over the field, it means the Double Helicopter booster has been activated, although it won’t land on the field.

🚁 After the booster is applied, the regular Helicopters on the field change color. If you create a combination of two such Helicopters during the game, it will result in five Helicopters, each hitting its own target.