I would love to see a Mario Kart collection that includes all 145 tracks in one game, as well as the arcade tracks. & I would really love to have the ability to play them all online. Because Mario Kart has a lot of really great tracks, Mario Circuit 2, Super Bell Subway, Choco Island 2, Rainbow Road, Sweet Sweet Canyon, Toad's Turnpike, Sky Garden, Ribbon Road, Yoshi Desert, etc.