Sure! Here's an example of a Pac-Man game with a fire flower power-up, implemented as a single HTML file using JavaScript and enclosed in script tags. This game can be played on all devices, including smartphones, and uses pictograms.
Pac-Man with Fire Flower Power-Up
To play the game, simply copy the above code into a new HTML file and open it in a web browser. The game canvas will appear, and you can control Pac-Man's movement using the arrow keys. The objective is to collide with the fire flower power-up to activate it and earn points. The score will be displayed at the top of the screen.