Sure! Here's a simple game implemented as a single HTML file, using JavaScript and enclosed in script tags. It generates random shapes that act as interactive elements, providing a generative art experience. The game can be played on a smartphone as requested.
This game generates random shapes (circle, rectangle, and triangle) on the canvas every 1 second. The shapes are displayed as white pictograms on a black background. The shapes continuously appear, creating a generative art experience. You can play the game by interacting with the shapes on your smartphone screen.