Skill mini-game -- Neglect one for the other

The content of this skill-based mini-game is just like its name:顾此失彼 (Catch and Drop). The game looks simple but is very challenging to play. The most important skill in this game is to master the balance point. The game is divided into two parts: top and bottom. The balance at the bottom is to prevent the ball from falling off the paddle, while the top part is a simplified version of the brick-breaking game. However, there are only paddles and balls, no bricks, and you still cannot let the ball fall down. The difficulty of the game lies in using the mouse to control the movement of both paddles simultaneously. Therefore, you need to find the best balance point to ensure that both balls can move within the controlled range. How challenging is that!

Gameplay: Move the mouse to control the upper and lower paddles and let the balls move within the controlled range of the paddles. The longer you last, the higher your score will be. If any ball goes out of control, the game will be over.