Sure! Here's an example of a simple game implemented in a single HTML file using JavaScript. The game will display rotating pictograms every second, where the player can tap/click on them to score points. The score is shown at the top of the screen.
Score: 0
In this game, pictograms will appear on the canvas every second, moving from right to left. The player can tap/click on the pictograms as they appear to score points. The score is incremented each time a pictogram is clicked, and the updated score is displayed at the top of the screen. The pictograms will keep rotating and appearing forever.