Imagine a sealed plastic cube 1/5 filled with water. Imagine what happens when you rotate it in any way. We want to replicate this with LEDs. Turning on entire rows of LEDs at the sametime will not work, the LEDs need to have an appearance of the flowing of water within the cube. So the LEDs will always be at the lowest point of the cube depending on its orientation. There are no pre programmed animations, its flows with gravity so to speak. (an accelerometer will determine the orientation.)
Also, the center will be somewhat hollow, only the surface area will have LEDs so 6 sheets of 5x5s. Also, you are giving me information, but not sure what you are referencing.