-No story at all. -Each character had their own theme song. (Roll's is "Kaze yo Tsutaete.") -Each character has different stats. -You can equip characters with items to improve their abilities. -You can direct lobs and return hits. -Hitting left or right will change the ball's angle. -A gauge fills up allowing you to do a super shot.
If only the Maverick Wars had been handled this way instead of all the bloodshed... Wait, X loses? What the heck!?