The neon world will be threatened by an aggressive cubic army. You must organize a defense in Void Defense. There are three objects on the border that should ensure its protection. The largest and the main one is the shooting tower. If her life energy runs out, you will lose. The towers on the left and on the right are auxiliary and not too important, the main blow will fall on the one in the middle. You must strengthen it with the help of additional types of weapons, you will find them on the horizontal panel below. In the lower right corner indicators will grow for which you can open another type of weapon. It works for a limited time, so try to alternate between different models so that the tower does not remain defenseless.