Sure! Here's an example of a simple game about khadi and charkha that can be played on a smartphone. It uses pictograms for an interactive experience.
To play the game, you can save the above code in a file with an `.html` extension (e.g., `game.html`). Open the file using a web browser on your smartphone, and the game will start automatically. Tap on the khadi symbol to increase the score and on the charkha symbol to decrease the score. The game will continue for 60 seconds, and the final score will be displayed at the end.