Mario Tennis (Nintendo 64)

Mario Tennis was a Mario party game on Nintendo 64. The whole game was games of tennis and it went on to produce the sequel Mario: Power Tennis. This game was a milestone in Mario history because it marked the first appearance of the popular character Waluigi. Since then, Waluigi has made numerous appearances from Mario Kart: Double Dash, to Mario Party, to Super Smash Bros: Brawl. Mario Tennis has also helped create more Mario sports games with its popularity.