Here we offer you to make an application that will allow you to train your little dexterity. To do this you need to go to space where you will encounter a very tricky fixture. Appear on the playing field a lot of balls, which will move to the bottom, there will be four balls. If the ball is on the territory of another, the fact that the bottom is in you must click on the desired key. If you act quickly, all will certainly happen.