I have created a simple JavaScript game that can be played on a smartphone. The game involves clicking on pictograms to achieve a target score within a set time limit. Here is the code enclosed in script tags:
Pictogram Game
Click on the pictograms to earn points within the time limit!
Score: 0
Time: 60
You can copy and paste this code into an HTML file and open it on a smartphone browser to play the game. Have fun!