What is this stacking game with rotating coloured sides?
This is from Chameleon


  Its the 3-D building game with a colorful twist! As players race to
  build towers using their Chameleon' blocks, there's a surprise with
  every move - the Chameleon blocks magically change their colors!
  
  Place one red block on a tower and the block below turns green. Choose
  another red block, add it to the tower, and the block below changes to
  red. You'll need skill and luck to correctly "predict" what colors
  will appear. Matching colors earns you another turn. If block colors
  don't match, dismantle the tower, block by block, and start from the
  ground up!