The goal of the game is simple. Turning the wheels with 4 spheres of different colors on them find matches of the same color that would form squares, diagonals and rectangles. It is very easy to get used to the mechanic that seems unusual at first sight. Besides, the restriction for moving spheres between the wheels gives the advantage of spatial reasoning training. There are only 4 colors at the beginning of the game and the combinations are quite easy to find. But at higher levels the game gets more complicated because more and more colors appear. If you fail to find a match Shuffle Button will help you by mixing all the spheres on the game field. The game is divided in 5 parts. At the beginning of a new part the game gets more complicated but the last level of each part is a bonus level. There are lots of bonuses and explosions on this level that is why such levels are fun! The new background picture at the beginning of the new part creates the atmosphere of fantastic adventure. The same mood is created by the music - 5 tracks chosen at random. There are five types of bonuses in the game – explosion of the area, explosion of all spheres of the same color, freeze of time, super-sphere and universal sphere. Some levels can be completed only by intensive use of the freeze bonus, other ones with the help of the super-sphere that grants a great score and reduces the time for completion of the level. The principle of the game mechanic can be quickly learned but it takes hours to discover all strategic possibilities and to understand all the peculiarities. The player will be rewarded with bonuses for complicated matches that are not so easy to find and the time spent searching for them will be completely compensated. In the end it is simply a pleasure to find a diagonal of 8 spheres or a rectangle of 6 spheres.