Sure! Here's an example of a Flappy Frog game implemented as a single HTML file using JavaScript and enclosed in script tags:
To use this code, save it in an HTML file (e.g., `flappy_frog.html`) and open the file in a web browser. The game is played by pressing the spacebar to make the frog jump and avoid collision with the pipes. The score is shown at the top right corner, and the game ends when the frog collides with a pipe or goes out of bounds.