Sure! Here's a sample implementation of the game "Cube Dash" as a single HTML file using JavaScript and pictograms:
To play the game, save the code above to a new HTML file (e.g., `cube-dash.html`) and open it with a web browser. The game will start, and you can use the arrow keys on your smartphone to control the cube and avoid obstacles. If the cube collides with an obstacle, a "Game Over" alert will appear.