Sure! Here's a simple implementation of the classic Snake game using HTML, CSS, and JavaScript:
To play the game, save the above code into a single HTML file (e.g., `snake.html`) and open it using a web browser on your smartphone. The game will start automatically, and you can use the arrow keys on your keyboard or the touch gestures on your smartphone to control the snake and eat the red food. The score will be displayed at the top-left corner of the canvas.
Note: This game is designed to be played on a web browser and may not work optimally on a smartphone. It's recommended to play it on a desktop or laptop computer for the best experience.