Sure! Here's a simple game implemented as a single HTML file, containing JavaScript code enclosed in script tags. It's based on the popular game "Five Nights at Freddy's" and optimized for smartphone operation using pictograms.
Five Nights at Freddy's Game
To play the game, you need to save the above code in an HTML file, open it in a browser on your smartphone, and start tapping on the pictograms to increase your score. The game lasts for 30 seconds, and the final score will be displayed at the end. You can restart the game by tapping the "Restart Game" button. Have fun playing!