Sure! I can help you create a simple game where the player controls a snake to eat food. Here's an example of how it can be implemented in a single HTML file using JavaScript:
The above code will create a canvas element where the game is displayed. The player can control the snake using the arrow keys on their smartphone. The snake moves around the canvas, and when it eats the food, the score increases. The game will end if the snake hits the walls or collides with itself.
This is a basic implementation of a snake game using JavaScript and HTML. You can customize the styles, graphics, and gameplay as per your requirements.