Sure! Here's an example of a simple FPS game implemented as a single HTML file using JavaScript. Note that due to the limitations of plain HTML and JavaScript, the game will not have advanced 3D graphics or any pictograms. It is just a basic representation:
This code creates a canvas element where the game is rendered. The player is represented by a blue rectangle, and the robots are represented by red rectangles. The player moves using the W, A, S, and D keys, and the game checks for collisions between the player and the robots.
Please note that this is a very basic implementation, and you can enhance and modify it further to add more features and improve the graphics as per your requirements.