The puzzle aspect behind this game was brilliant. The progression was fairly smooth, starting off easy and getting harder throughout. However, there was no real challenge behind this game, which deprived it of a full five stars. Normally games such as this one have little challenges within them that award stars upon completion. With this game, once you beat the level, it was over. There was no other challenge. Getting past that, I really enjoyed this game. The game play was good, the art was good, and the music was OK.