Does not contains any ads! The goal of the each puzzle is to move bearing to the target place. Any gray squares can be removed by touching of them. You have to put bearing on target place exactly (5 point accuracy). Fun and addictive physics puzzle gameplay! Great physics simulation! Your brains are the main key in this game. Try to find your own decision. Physics game is a fun way of practicing physics...The game includes a lot of great puzzles. Most of them are very challenging puzzles. For smart persons that love it. Stores your game progress. Music by Eric Matyas www.soundimage.org