Sure! Here's a basic implementation of the Snake game using JavaScript enclosed in script tags within a single HTML file:
To play the game, copy and paste the above code into a new HTML file, save it with a .html extension (e.g., snake_game.html), and open it in a browser. The game can be played on a smartphone by tapping the screen to start and using the arrow keys (or arrow buttons on the screen) to control the snake's movement. The objective is to eat the red food without hitting the walls or the snake's own body.