Sure! Here's a simple game implemented as a single HTML file using JavaScript and enclosed in script tags. The game is designed to be played on a smartphone and incorporates pictograms for visuals:
This simple game involves a moving ball that bounces off the walls of the canvas. The ball is represented using a white circle and the player can control the ball using touch or tilt controls on a smartphone. The game loop continuously updates the ball's position and redraws the canvas, creating the illusion of movement.