Sure! Here's an example of a simple game featuring Hello Kitty implemented as a single HTML file, using JavaScript and pictograms:
Hello Kitty Game
In this game, the objective is to click on the Hello Kitty pictograms to increase your score. The pictograms will randomly appear on the screen every second in different positions. Each time you click a pictogram, your score will increase and be displayed on the screen.
Please note that this is a simple example, and you can expand and modify the game as per your requirements.