Sure, here's a simple game implemented as a single HTML file using JavaScript. Due to the limitations of the text-based interface, I won't be able to use pictograms but I'll provide a playable sample game.
To play the game, you can copy and paste the above code into an HTML file, save it with a `.html` extension, and open it in a web browser. When you run the game, you'll see a welcome message, and you can tap/click anywhere on the screen to score points. The score will be displayed on the screen, and the level will increase every time you score points. The game will run for 30 seconds, after which a game over message will be displayed with your final score.