Sure! Here's a simple implementation of a single cricket defending game using JavaScript within a single HTML file:
This implementation sets up a cricket (represented by a black circle) in the center of the game canvas. The cricket moves around the canvas and bounces off the walls. You can play the game by opening the HTML file on a smartphone or in a web browser. The game is controlled automatically without any user input, but you can modify the code to add player input or additional game mechanics as per your requirements.