Every level has the Optimum number of shots, if you manage to defeat the enemy in the stated number of shots then you will earn more points. You can play this game against your computer or challenge your friend for a battle in the Antarctic. The players take turn to shoot.

Left Click and Drag the strip inside the box to set the angle and power. The longer you stretch the more power you will put in the shot. Finally Left Click on the FIRE button to shoot.