Sure, below is an example of a simple game implemented as a single HTML file, which can be played on a smartphone. It utilizes JavaScript and pictograms for visual representation. The game involves bouncing a ball up and down until the fifth month, at which point it displays "DVD screen" and repeats the process.
To start the game, simply open the HTML file in a browser that supports JavaScript. When the ball is clicked or tapped, the month counter increments. Once it reaches the fifth month, it displays an alert with the message "DVD screen" and then resets the month counter, allowing the game to repeat. The ball continuously bounces up and down using CSS animation.