Sure! Here's a simple car game implemented as a single HTML file using JavaScript and enclosed in script tags:
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To play the game, save the above code into a single HTML file (e.g., `car_game.html`) and open it in a web browser, preferably on a smartphone. The game involves moving a car using left and right arrow keys and avoiding collision with randomly generated obstacles. The game will alert "Game Over!" if a collision occurs, and the game will be reset after closing the alert box.
Please note that this is a simple implementation for demonstration purposes. You can customize and enhance it based on your preferences.