Full list of all 45 MX vs. ATV Alive achievements worth 1,000 gamerscore. It takes around 20-25 hours to unlock all of the achievements on Xbox 360.
Reach Rider XP level 50, chasing records is all that is left
Get at least a silver in all the Challenges in a Free Ride event
Win a race with the James Stewart character
Defeat James Stewart in a race
Own a 3 star vehicle for each class
Win 35 races online
Win the race and do a 360 over the finish line jump
Finish 50 races on Xbox LIVE
Earn a podium on each track
Win a race at every track
Finish at least one race at each track
Ride for over 100 miles in Free Ride
Pull a wheelie over 150 feet
Welcome to the big leagues, it's time to race James Stewart, Pro Rider XP level 25
Beat a rider with a higher Rider XP than you
Earn a podium on Xbox LIVE with assists turned off
Almost Pro, Reach Rider XP level 18
Capture 3 MotoSport holeshots in a row
Pull off 100 stunts
Complete 50 overtakes using bar banging
Reach Amateur Status at Rider XP Level 10
Save 100 wrecks using wreck avoidance
Land a backflip
Save 35 wrecks using wreck avoidance
Change your Rider Skills
Almost Amateur, Reach Rider XP Level 6 and make a name for yourself
Own a 3 star MX or ATV
Win a race after not leading until the last lap
Complete 5 overtakes with bar banging in a race
Win 5 races in a row
Capture a record lap time
Earn a podium 3 races in a row
Find the bonus vehicle in all of the Free Ride events
Hydroplane over 120 feet of water
Wreck 50 times
Win a Gold medal in a Free Ride Challenge
Customize your vehicle or rider
Reach Rider XP Level 2 and meet James Stewart
Earn a medal in a Free Ride Challenge
Beat a friend's record in a Free Ride Challenge
Finish a race without going off track
Get the holeshot and win a race
Visit the MotoClub Depot
Finish a race
Achieve every level 1 Race Goal