The Cube army was gathering forces and in the game Shooting Cubes it finally decided to storm your positions. However, you, too, did not sit idly by, but prepared a platform that allows you to quickly and deftly increase the effectiveness of guns and install them on free turrets. To begin with, install one gun and raise its level as much as possible by connecting two identical guns at the bottom of the field. You can activate the auto merge function. In order to upgrade a cannon already in position, it will have to be removed and connected to the same level in order to get a higher one. You need to act quickly because the cubes get stronger with each level in Shooting Cubes.