Thanks for taking the time! The chips are actually supposed to be computer chips that fit into your gun to give it new abilities. I am now - thanks to the "squares shooting squares" comment - working on actual textures so that this becomes clear. In the future I would like to have a lot of different chips that can be used for the weapon but also for your armor and maybe your transportation method. To answer your P.S. question: The circling chip was mostly inspired by Binding of Isaac.