Sure! Here's an example of a simple game similar to Freefire, implemented as a single HTML file using JavaScript. Please keep in mind that this is a basic implementation and not a full-fledged game. You can further improve and enhance it as per your requirements.
Freefire-like Game
Please note that this is a stripped-down version for demonstration purposes only. You can enhance and modify this code to add more features, levels, sound effects, etc., to create a fully functional Freefire-like game.