Sure! Here's an example of a simple game implemented as a single HTML file, using JavaScript and enclosed in script tags. The game is based on smartphone operation and uses pictograms where possible:
In this game, there is a game screen (`#game-screen`) with a target pictogram (`
🎯`). The goal is to touch the target pictogram to earn points. When the target is touched, it gets removed from the screen and the score is updated. The score is displayed at the top of the page and increases by 10 points for each successful touch.