In Silversphere you control a metallic ball with your arrow keys, rolling it accross a platform filled with obstacles towards a glowing blue vortex at the other end. Each platform is a tricky puzzle, offering gaps to fill, blocks to push, and other moving balls to avoid. And that's just the first two levels. Make sure to have a pen and paper handy to jot down the passcodes for each level so you can skip back to it later. Created by DX interactive.