The Original Rubik's Cube - With a Twist! The Colour Block's unique mechanism and different sized blocks result in the Cube changing shape with every move you make. A strategic puzzle toy built to cause utter confusion! You may recognise this as the Mirror Cube - but add some recognisable Rubik's colours and this makes for an exciting new addition to the range. The Rubik's Colour Block Cube features six different coloured sides, each made up of nine squares. With every turn and twist, the colours become more scrambled and the Cube changes shape.