Conveyor. Box Escape.

At the factory for the production of containers and boxes, a riot arose. The boxes found their minds and crushed the workers in the workshop. You, the director of this factory, having heard the noise, ran out of the office. You will have to stop the escape using modified robotic defense systems.

To buy a tower, left-click on the image of the tower in the panel on the right.
To install a tower, move it to an empty green square and click the left mouse button.
To improve the tower, right-click on the desired tower (When the inscription "Up").
Press "A" or "D" to move the camera left or right.
Press "R" to replay level.

Your task is to prevent the boxes from breaking, stop them.