Sure, here is an example of a simple 2D game implemented as a single HTML file using JavaScript. Please note that this is a very simplified version and may not have full functionality like Grand Theft Auto 3. The game uses pictograms and can be played on a smartphone.
To use this code, you need to replace the `"emozi_all/player.png"` with the URL of your own player image. Additionally, you can add more game elements and customize the game logic according to your requirements. Remember to save this code in a file with a `.html` extension and open it in a web browser to play the game.