Sure! Here's an example of a simple game implemented using a single HTML file with JavaScript, enclosed in script tags. This game simulates a car race and can be played on a smartphone:
This code creates a simple car race game where the user controls a car using touch events. The car moves horizontally within a div container, simulating a race track. The game starts automatically and the car accelerates when the user touches the screen. However, if the car goes off the track, the game ends and prompts the user to play again.
Please note that this is just a basic example to illustrate the concept, and the actual game mechanics and visuals can be expanded and improved as desired. Also, don't forget to replace `emozi_all/game.png` with the actual path to your car pictogram image file.