Sure! Here's an example of a simple game implemented as a single HTML file using JavaScript. The game is about saving a boy from freezing. It uses pictograms and is designed for smartphone operation:
In this example, the game starts by freezing the boy (represented by a pictogram) and requesting the player to save him by tapping on him. If the player taps on the boy while he is freezing, they are alerted with a success message. Otherwise, they are alerted to keep an eye on the boy.
Note: You will need to replace `"emozi_all/pictogram.png"` with the correct path to your pictogram image file.