In this game you have to try and remain the same position by pressing the space bar (or click if you are on mobile) kind of like Flappy Bird. Try to avoid the sharks and going to high/low. See how long you can last! If you lose then you can click the green flag again to retry.
I made this using a Scratch book but some of the details I added myself. This project took about 25 minutes because of errors and complicated mistakes.