Sure! Here's a simple Gorilla Tag fan game implemented as a single HTML file using JavaScript. Since pictograms aren't supported in text-based responses, I'll provide a playable sample game instead.
This game sets up a simple scenario where you control a red player (represented as a red circle) using the arrow keys on your smartphone. The goal is to catch the yellow banana (represented as a yellow circle) by colliding with it. When the banana is caught, an alert message will appear, and the game can be reset to play again. Simply copy the above code into a single HTML file and open it in a web browser to play the game.