Touch Colorful Cube

Our goal in the game is to get the highest score by making the cubes fall down from the white areas. In each layer, we try to pass the cubes through the white space and lower them to the lower layer. However, only the part of the cube inside the white area will fall into the lower layer. If you drop a very small piece into the bottom layer, you cannot make the cube move with enough force to go down to the next layer.