I just beat all of Peak 1 and 2, and all of the regular races on Peak 3. I have one more track to beat on the "trickstyle" area of Peak 3 and I'll be done besides the Freestyle challenges which are very, very in-depth. Mac is now with every stat at 11 (the skateboard accessory allows the stats to go above 10). I would be playing now, but my thumbs burn.
This game is incredible. I'm just now learning how to chain together massive combos using the right analog stick and hand-springs. One of the races on Peak 3 is so fast-paced it's crazy. The graphics really show when it speeds up and a blizzard is on the track.
-Lasereth