Sure, here's an example of a 2D fluid simulator game implemented as a single HTML file using JavaScript:
This code sets up a simple 2D fluid simulator game using an HTML canvas. It creates particles that bounce off the walls of the canvas and move around randomly. The particles are represented by small circles with random colors.
To play the game, you can open the HTML file on a smartphone's web browser. The particles will move around the canvas, creating a fluid-like simulation.