This is a simple operation, but very fun puzzle game, players in this game through the left and drag the box, will be the drag of the same color together and then destroyed when the hurdle in all the boxes have been destroyed after clearance. The lovely box shape and well-designed crossing absolute God for the exercise of intelligence. In the higher-level crossing in the mines, magnets, elevators and other props to make the game more challenging and playability as well as irritating!