Sure, here's a simplified version of Flappy Bird using emojis. Please note that due to the limitations of text-based representation, some aspects of the original game may not be fully replicated.
Score: 0
To play the game, you can copy and paste the above code into an HTML file and open it in your web browser. The game will be played on a canvas element and you can control the bird (represented by a bird emoji) using the spacebar. Try to navigate through the obstacles (represented by tree emojis) and avoid collisions to increase your score. When the game is over, an alert message will appear displaying your final score.