hello.i want to suggest you some achievements for extremme slediing:
adicted:play every course 5 times.
novice:score more than 30 points on every course
expert:score more than 45 points on every course
medal winner:win 10 multiplayer matches

Excellent!

thanks

weell,i think the last badge is a bit dificult to get,beacause its hard to find an online plauer