Rotate the wheel, drop blocks from above to merge them together. Once blocks reach the outer circle of the wheel - the game is over.
You can also use power ups to get rid of unwanted blocks and get scores.
Game features 3 different play modes:
+Timed Mode - every 10 seconds theres a random blocks drop
+Relax Mode - every third move without merging random blocks drop
+Zen Mode - no random drops
As well as more themes to customize your play and level progression.