The trucks are ready to be loaded into the Bubble Truck. At each level, first one, then two or more cars will be fed from the left, stopping near the traffic lights and waiting for loading. Your task is to inspect the structure in which the bubbles are located and move the correct shutters. The color of the cargo must match the color of the car and this rule must not be violated. Deal with the shutters and the loaded truck will calmly move on, and the next one will stand behind it. Levels are traditionally more difficult. If there is more transport, then the range of balls will increase accordingly, and certain obstacles will appear in the Bubble Truck.