Catch the Ball is a simple HTML5 browser-based game where players control a green paddle at the bottom of the screen to catch falling red balls. Using the left and right arrow keys, players must move quickly to position the paddle under the falling ball. Each successful catch increases the player's score, while missing a ball ends the game. The game is responsive, working on both desktop and mobile screens, and includes a custom game-over modal that shows the final score and an encouraging message based on performance.