Sure! Here's an example of a Snake Game implemented as a single HTML file using JavaScript and enclosed in script tags:
This code will create a simple Snake Game where you control a snake using the arrow keys on a smartphone. The objective is to eat the red food and grow the snake without hitting the game board edges or the snake's own body. The game board is displayed as a square with a green snake head and light green snake body using pictograms. The food is indicated by a red pictogram.