Sure! Here's an example of a simple generative art game implemented as a single HTML file with JavaScript, utilizing pictograms and designed for smartphone operation:
This program generates random shapes on a canvas whenever the canvas is clicked on. The shapes are filled with random colors generated using the `getRandomColor` function. The canvas is responsive and can be interacted with on a smartphone. Simply open the HTML file in a smartphone's web browser, and clicking on the canvas will generate new generative art.