Well this was a task solo. This requires 8 controllers and during the 4 second startup lobby you must stack the 8 cubes into a single tower.
When you set up the 8 controllers in the lobby make sure to select a different color for each player. Then sort the controllers in front of you so you can know which one is for which color.
A really really big tip is after you click
to start the game, click
again to quickly pause the game the second you see the cubes. This way you know which ones to move first. I then moved 2 at the same time to a tower and then quickly paused again. This took some time and practice and its so much easier if you have other people with you to play.