The game principle is simple. A liquid has to be brought from A to B, while moving through an obstacle course. The barriers function by simple laws of physics (which you can learn this so playfully).
In order to control the arrow keys are simply used too is kept simple. By means of these keys, the inclination of the screen is controlled to the left or right.
The game is funny and makes (also frequent players) fun. And it looks easier than it is ...
