Algodoo

First, click the play button. Then, use your "breaker" (the box beneath the black marble) to shoot the black marble to the blue marbles.
You must use your mouse to move the breaker, otherwise it will fall. Only the black marble can pass the border. Use the black marble to destroy the blue marbles. Feel free to add more blue marbles. NOTE: This game must be played within a 10 m scale.