Sure! Here's an example of a simple Geometry Dash inspired game written in a single HTML file with JavaScript:
This HTML file creates a simple game where the player (a pictogram represented by an image) needs to jump over randomly generated obstacles. The game ends when the player collides with an obstacle or falls off the screen. You can adjust the colors, sizes, and other properties as desired. Make sure to have a suitable `emozi_all/game.png` image file in the same directory as the HTML file for the player pictogram to show up correctly.
Please note that this is a basic implementation to get you started, and you can further enhance and customize the game according to your specific requirements.