Sure! Here's an example of a simple game implemented as a single HTML file, using JavaScript and primary colors. Since you mentioned smartphone operation and pictograms, I have created a game where you have to guess the color based on its name.
Note: This implementation is a basic example and can be expanded or customized further based on your requirements.
Save the above code in an HTML file and open it in any web browser to start playing the game. The game will randomly choose a primary color (red, blue, or yellow) and you need to enter the correct color name in the input box to check your guess. The result will be shown below the color box.