iroIro is a challenging puzzle game. At $0.99, it offers about 50 levels divided between tournament and puzzle types. The goal us to tilt your phone so that the pieces fall in a particular direction in order to get three or more pieces of the same color to combine…and to do this to clear the pieces in a certain number of moves. I found the game to be mire of a frustration than a challenge though. The new concept of this type of puzzle was something that I could not get my old brain wrapped around. But at a buck, younger minds that like puzzles may want to take a small risk on it.