Sure! Here's a simple stickman fighting game implemented as a single HTML file using JavaScript:
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To play the game, you can open the HTML file in a web browser on your smartphone, and tap on the stickman to initiate the fight. The stickman will perform an attack animation, followed by a victory dance animation, and then return to its default position.
Please note that this is just a basic demonstration. You can customize and enhance the game as per your requirements, such as adding multiple levels, different attacks, or an opponent.