In Pop Ball Blast, players control a cannon positioned at the bottom of the screen. The primary objective is to shoot and destroy descending balls before they reach the cannon. Each ball may have a number indicating the hits required to eliminate it, and upon destruction, larger balls might split into smaller ones, adding layers of complexity to the gameplay. As the game progresses, the speed and number of falling balls increase, requiring players to enhance their reflexes and strategic planning to survive longer and achieve higher scores.