Sure! Here's an example of a simple game where a superhero fights against a boss using fire. The game will be implemented in a single HTML file, enclosed in script tags, and written in JavaScript:
In this game, you can control the superhero's fire by touching the screen on a smartphone. The superhero's goal is to defeat the boss by shooting fire projectiles at it. If the boss's health reaches zero, you win the game. Otherwise, the boss will continue to fight back.