Tennis Ace for the Sega Master System is a classic tennis game where one or two players can compete against each other or against computer opponents. The game features multiple difficulty levels, allowing both beginners and experienced players to enjoy the challenge. Players can choose from different play styles, such as balanced, offensive, or defensive. Matches are played on fixed courts with singles or doubles, using various strokes like smash, volley, ground stroke, and lob, depending on ball position and timing, creating a strategic and entertaining experience.