Pros: Everything in this game works perfectly.
Cons: Shallow gameplay. Difficult typography.
Some games are simple but deep: “Seconds to learn, a lifetime to master.” This game, on the other hand, is simple and shallow: it takes seconds to learn, and seconds to master. The main source of difficulty in the game is that the font used to display the numbers is stylized to the point that it is difficult to read.
iTunes suggested this game to me when I was looking for games similar to Sokoban. This game, however, does not test your deductive powers so much as just how fast you can move your fingers. You only get a couple seconds to execute your moves, so this is more of an arcade game than a logic game.
Everything in the game works perfectly. If you are looking for a frenetic, super-short game then this would be fine. It’s possible that this would be a great game for children, but not so much for adults looking for logic puzzles.