Full list of all 15 Doritos Crash Course achievements worth 300 gamerscore. It takes around 4-5 hours to unlock all of the achievements in the base game.
The base game contains 12 achievements worth 200 Gamerscore, and there is 1 DLC pack containing 3 achievements worth 100 Gamerscore.
Finished every level in Xbox LIVE
Beat a friend in an Xbox LIVE race
Run at top speed when you're about to wipe out
Got smashed by 3 hammers in a row
Bounced from trampoline to trampoline 12 times in a row
Swung from rope to rope 10 times in a row
Earned a gold medal on each level
Flew from fan to fan 20 times in a row
Finished the Japan Levels
Finished Japan level 4 with a time of 1:40 or better
Finished the Europe Levels
Finished the USA Levels
Survive the collapsing bridge in London 5
Pop 5 balloons in a row without touching ground
Get launched through the magic hat in Vegas 5