Sure! Here's an example of a simple fruit slicing game implemented as a single HTML file using JavaScript and touch event handling for smartphone operation:
To play the game, simply copy and paste the above code into a new HTML file, and then open it in a web browser on your smartphone. You can swipe on the screen to slice the fruits. Each sliced fruit will increase your score.
Note: This is a basic implementation and can be further enhanced with additional features, levels, animations, sound effects, etc., depending on your requirements and preferences.