Sure! Here's an example of a simple shooting game implemented in a single HTML file using JavaScript and enclosed in script tags:
This is a simple shooting game where the player controls a character using mouse movements. The player shoots bullets by clicking on the game canvas. The goal is to shoot down the enemies that appear randomly on the screen. The score increases by 10 for each enemy shot down. The game loop continuously updates and renders the game state.
Please note that this is a basic implementation to give you an idea of how a shooting game can be built using JavaScript in an HTML file. You can customize and enhance the game further according to your requirements and preferences.