Throw the ball against the green blocks to make them fall, but avoid the fall of the red ones! There's 3 types of surface: rock, plastic and ice, each one with different physical properties that you have to consider in order to solve the more difficult levels. | Keep the mouse button pressed at the point where you want to grow a ball; release the button to launch the ball; move the mouse pointer to indicate the power of the shot (the more you move the pointer away from the ball, the shot will be stronger). Space bar to cancel the current ball. |