Welcome to Tennis Turtles! In the two player mode, one player controls with left and right arrow keys, and the other controls with A and D. In the volleying mode, you volley with the computer. It is more the a practice mode, so you can't really "beat it". I wonder how long you can last! The final mode is also against the against the computer, but it is technically beatable. But be warned, it is really hard. Hope you have a fun time playing!
Thank you to csfirst for the starter project, and my classmates who told me to make this project.