Mario Kart on the n64 is an extremly well made game. when one person plays the game for the first time the controls are easy and you don't nead to worry about changing gears. After you get better you can move on to harder levels of play. once you beat the game on 150cc (hardest level) you can race al track in mirror mode (all tracks have opposite turns then their original tracks). the ads more replay value because the game in a sence has new tracks. All the tracks are unique and have varied difficulty levels. they are also well designed.