Sure! Here's a simple game implemented in a single HTML file, using JavaScript and enclosed in script tags. This game can be played on a smartphone and uses pictograms to enhance the fun factor.
Pictogram Game
In the above game, there is a grid of pictograms displayed. The player can click on any pictogram, and upon clicking, an alert will be shown indicating that the player has clicked on a pictogram. The game can be expanded further by adding scoring, levels, or any other desired features based on the requirements.