Sure! Here's an example of a shooting game implemented as a single HTML file using JavaScript:
This game creates a shooting game where you click on the game area to shoot bullets. The bullets move up the screen, and if they collide with a target, both the bullet and the target are removed, and the score is incremented. The game area is represented by a `div` element with the id of "game", and bullets and targets are represented as `div` elements with the respective classes of "bullet" and "target". The score is displayed on the game area.
Feel free to modify the code to suit your requirements and add pictograms or further enhancements to the game.