Sure! Here's an example of a game implemented as a single HTML file using JavaScript. Please note that this is a simplified version and cannot replicate the complexity of GTA Vice City, but it can provide a basic framework for a similar style game. The game will be played on a smartphone, and we will use pictograms when possible:
In this simple game, you can control a player's movement on the canvas using touch controls. The player is represented by a red square, and you can move it by touching different areas of the screen. When a touch starts, the game determines the direction in which to move the player based on the touch position. When a touch ends, movement stops.
Please note that this example only includes basic player movement and rendering. To create a more comprehensive game like GTA Vice City, you would need to add additional features such as collision detection, enemy AI, mission objectives, and more.