Summary: First of all, pretend I rated this 1.5 stars (even though you can't do half stars). The whole tennis thing is a joke. There are circles with different moves on them that are special when you use them.
Summary: The only reason I bought this game was because I played it on my GBA when I was a kid and that one was fun as hell. It was a sports RPG of sorts. You got to explore the Royal Tennis Academy, build up your starts through practice sessions, mini games and tournaments.