As a snake in the game, your objective is to eat the green apple. Here's a sample implementation of the game using JavaScript in a single HTML file:
When you open the HTML file in a browser, it will display a canvas representing the game screen. You can navigate the snake using the arrow keys on your smartphone. The objective is to eat the green apple by moving the snake towards it. If the snake collides with the walls or itself, the game will be over and a message will be displayed. You can then start a new game by refreshing the page.