This is achieved by one manages to get at least three same-colored orbs in a series - this then dissolve. In between there are always power-ups like the frost cannon that destroyed several orbs or the scroller. The aim is therefore to look closely and to aim as precisely as possible under time pressure.
The graphics are very well done, even though you have this candyshop already like. The game runs on the Kindle Fire HD very smoothly and without any lag. The required permissions are justifiable and the memory requirements manageable. The fact that the app is only available in English, is not the end because the game is intuitive to control.
Overall a good and interesting puzzle / reaction app, you can buy quite.