Cool Balls by SplineStudio.com is a nice addictive puzzle game for children and adults. It develops thinking, prospective view and helps to spend your time with pleasure. The purpose of the game is to remove all balls from the field. A ball can jump over one ball (it will disappear) in case the next cell is free. If only one ball is left you are the winner. There are a number of levels and each level is more complicated than previous one. The game is freeware.