Sure! Here's a simple game where you can control a bouncing poo using your smartphone. It's implemented as a single HTML file with JavaScript enclosed in script tags. To play, simply open the file in a web browser on your smartphone.
This code creates a simple canvas element where a poo (represented by a brown rectangle) bounces around the walls of the screen. The poo starts from the center and moves at a constant speed. Each time it hits the walls, it changes its direction. The gameLoop function continuously renders the updated position of the poo on the canvas, creating the illusion of movement.