!!!Mario Kart Super Circuit Deluxe
Mario Kart Super Circuit Deluxe is an in-progress hack created by Xgone. As the name suggests, it focuses on bringing Mario Kart Super Circuit to Mario Kart DS, while also trying to revamp things that the original counterpart has done. The hack focuses solely on revamping MKSC tracks and battle arenas, as well as adding new karts (with some gimmicky stats to boot). The deluxe content does not end there, as the battle mode will feature 2 brand new battle arenas (one of which has already been revealed in its earliest form).
Videos showcasing the content of the hack:

[{Video url='https://www.youtube.com/watch?v=gGkzjqC73HA' width=560 height=315}]\\
[{Video url='https://www.youtube.com/watch?v=IMtFtbkJRw4' width=560 height=315}]\\
(There will be more content soon and a demo is planned for the future).