Sure! Here's a simple game implemented as a single HTML file using JavaScript. The game is a mini version of a popular smartphone game, Snake. I've used pictograms and made it suitable for smartphone operation:
To play the game, simply open the file in a web browser, and you can control the snake using the arrow keys on your smartphone's virtual keyboard. Try to eat the red apple (food) and avoid hitting the walls or the snake's own body. Your score will be displayed on the top left corner. If the game is over, an alert message will pop up.
Please note that the given script at the beginning (`#!/bin/bash screen...`) is a Bash shell command and unrelated to the game code.