Sure! Here's an example of a simplified Flappy Bird game implemented as a single HTML file using JavaScript and pictograms:
To play the game, simply open the file in a web browser. You can control the bird by clicking/tapping on the canvas to make it flap and avoid hitting the obstacles. The score is displayed at the top left corner. When the bird collides with an obstacle or goes off-screen, an alert will be shown indicating game over and the game will reset.
Please note that this is a simplified implementation and might not include all the features of the original Flappy Bird game. Feel free to customize and enhance it as per your requirements.