I don't really enjoy it. You only have enough in-game energy to play 5 times, and then you have to wait for energy to refill. Also, this really ought to be a one player game. I always win, but why is it even a race to see who can find the differences faster? Also the sensitivity needs work. Whenever I zoom in or out, the game counts it as an incorrect selection. And you can be within a quarter centimeter of the difference and still be marked wrong.