Sure! Here's a simple implementation of a handball game using JavaScript:
Handball Game
Goal: Move the player to catch the ball!
In this game, the objective is to move the blue player to catch the orange ball. The player can be controlled by tapping the screen on a smartphone. The player needs to catch the ball when it reaches the bottom. If the player successfully catches the ball, the score is incremented by one. The player can move horizontally within a certain range to catch the ball. The game ends when the ball reaches the bottom, and an alert is displayed with the final score.
Note: This implementation assumes that you'll be running the HTML file on a web browser (Google Chrome, Safari, etc.) on your smartphone. You can save the code as a .html file and open it using your smartphone's web browser to play the game.