Sure! Here's a simple implementation of the Flappy Triangle game using JavaScript and HTML:
To play the game, save the above code into a file with a .html extension (e.g., flappy_triangle.html) and open it in a web browser. Use the spacebar key to make the triangle jump and avoid the obstacles. The score will be displayed on the top left corner of the canvas. If the triangle collides with an obstacle or touches the ground, the game will be over and the score will be shown in an alert dialog. Just refresh the page to restart the game.