If you know shell challenges, you know the drill: Don't touch the walls! Feel free to turn the existing walls into half walls, fences or spandrels. You can add platforms, stairs, terrain tools, half walls and fences. On the inside you can add as many walls and stuff as you want. Also, try not to adjust the height of the floating cubes too much, unless you really struggle. Good luck soldier! #shellchallenge #trymesyd #spiralofcubesshell #buildchallenge