Pros: realistic gameplay, great mechanics
Cons: not great graphics to some people

Okay, this is the best tennis game ever created. I bought it because I wanted a good tennis game with excellent gameplay mechanics and realistic shots. This game, Mario Tennis for Gameboy Color, is awesome. I don't care that it's for an older system, it's better than any of the newer tennis games out. So if you're looking for a realistic tennis game that won't get boring, Mario is your only choice.