Sure! Here's an example of a simple game that meets your requirements:
Copy and paste the above code into an HTML file (e.g., `game.html`), then open the file in a web browser. The game will start automatically, and you can tap on the falling snowflakes to increase your score. The game will keep track of your score, time remaining, and display a "Game Over" message if you run out of time or a "You Win!" message if you complete level 10.