This trick requires that you have at least one Photon Sphere in your bank. Go to take items from your bank and scroll down to the Photon Spheres. Select the spheres. Then, choose the maximum amount that you have. When promoted to take them out of your bank, selec "No". Then, go directly to another stackable item in your bank (Mates, Atomizers, Fluids, etc.) and press A(4). Note: You can only have one of the item in the bank and none on your person for this to work. When you look at the items on your person, you will have the same number of items as Photon Spheres in your bank.