Volleyball! pits two six-man teams against each other on a single screen. A solid yellow line defines the horizontal court, while a vertical line divides the court in half. The object is to move two rows of three players (who move in unison) so they touch the ball, which will send it moving at a diagonal angle toward the top of the screen.
Serving is performed using the joystick, and the ball will start moving at a faster rate of speed as players continue to make contact. After seven consecutive hits, the ball will reach its full velocity. Players can also spike the ball by pressing the action button while making contact, which sharpens the angle of trajectory and increases the ball's speed. The first team to ten points wins the game.