Sure! Here's an example of a simple game implemented as a single HTML file using JavaScript. It can be played on a smartphone and uses pictograms for visuals.
This game simply displays a set of shuffled pictograms on the screen. You can modify the `pictograms` array with your own set of pictograms to make it more interesting. You can further enhance the game by adding score counting, time limits, or any other desired features. The code provided above should give you a starting point for building your game.