Jeuj! all 70 achievements.
Here's a few tips:
"Get lvl x boost" Pick "Letter F" and do a front wheelie on the starting spot:
5 seconds: boost 1
15 seconds: boost 2
25 seconds: boost 3
35 seconds: boost 4
45 seconds: boost 5
Sneaky start: press accelerate at the exact moment "Go" appears
Air time: Look for some halfpipe-ish spot and jump at the tpo of it to fly a bit back... Endless airtime that way
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