Sure! Here's an example of a generative art game implemented as a single HTML file:
This code creates a canvas element on the page and uses JavaScript to draw generative art. The `drawGenerativeArt` function generates random shapes with random colors and sizes, and the `updateGenerativeArt` function continuously updates the canvas every 2 seconds to create an animated generative art effect. You can resize the canvas on your smartphone and see the generative art react to the new size.