So originally the thought was to have a 20x10 LED array, but then this would be strictly purpose built for Tetris, whereas there is so much time and effort going into the design and hardware (as well as expense). So changing to a 20x20x4 LED table will be used instead. This drastically increases the potential power consumption (2x of original estimate), but build isn't entirely harder. Created a 3D mockup of the 20x20 LED table.