Not bad at all...

The only problem is that the sounds are copy and paste, and by the way, your music is Techno rather than Dance (And on top of that, your music should be included in a Video Game), I recommend that you make more of a soundtrack,

And besides that, put a better BPM to your music with much more Dance elements, instead of a lot of Techno

After having listened to so much of the original music that comes from Mario Kart DS, you are missing some melodies that you should play :l

For the rest, it improves on the melodies that the original tone of Mario Kart DS has, which gives it much more soundtrack with the added rhythms, and uses more soundtrack tones and make the richer, more exciting sounds the original has, just a little more,

For the rest, you have to improve ~_______~
2,5/5

//~SSJ4-Valentin15

This very good!