Sure! Here's a simple game where a bouncy ball moves up and down infinitely and plays elevator music while bouncing. It is written in a single HTML file and enclosed within script tags:
To use this code, save it as an HTML file (e.g., `game.html`) and make sure to include an `elevator-music.mp3` file in the same directory as the HTML file.
When you open the HTML file in a web browser (preferably on a smartphone), it will display a canvas with a bouncing ball, and the elevator music will play in the background while the ball bounces up and down.
Note: You need to provide your own elevator music file (`elevator-music.mp3`) and make sure it is located in the same directory as the HTML file for the music to play correctly.