Roll the cube on the floor while it's not populated by colored tiles.
The cube can have 3 or 6 colors depending on the difficulty and the tiles showup every step or 2 steps depending on difficulty.
The cube can move on a free or colored tile by rolling on an edge.
You capture a colored tile and thus reset it if you land on it with the face of the cube having the same color as the tile.
Good luck and enjoy!
