To play and win you need to use the main character Iron Ball to collect the Yellow Balls. Iron Ball is attached to magnets. You can throw the Iron Ball only from one magnet to another, otherwise you lose. Magnets have different size, moving speed, direction and type (main, breakable, stoppable, flipping etc).
Each level has limited number of available steps and you should choose the shortest way to throw the Iron Ball over magnets collecting all Yellow Balls to win the level.
Happy Playing!