Game: Sky Kingdoms

Not all games are for all players. Developers often create their wares with specific audiences in mind, and it seems clear that Alawar Entertainment's new fantasy-themed marble popper, Sky Kingdoms, is geared not for people new to the genre or even casual fans of such games, but rather hardcore ball blasters who play these games for hours on end until they become so proficient that they can fly through even the fastest-paced, most twisty levels while half asleep. It is, in other words, a challenging game, though not because of any great innovation on the genre's classic formula.