All rider credits awarded
Win a Career mode Grand Prix season on Legend difficulty
Continue playing to unlock this secret achievement.
Seed #1 achieved
Win a Career mode Extreme 600 season on Legend difficulty
Seed #10 achieved
Win a Career mode Extreme 1200 season on Pro difficulty
All Challenges completed
Seed #50 achieved
Win any Extreme mode championship, at any difficulty
50 Challenges completed
Seed #75 achieved
Win a Career mode Grand Prix season on Rookie difficulty
Seed #90 achieved
Purchase all extreme bikes
Win a Career mode Grand Prix season on Champion difficulty
Win a Career mode Grand Prix season on Pro difficulty
Seed #25 achieved
Play a 'Stunt mode' game in any Multiplayer mode
Win a Career mode Extreme 1000 season on Legend difficulty
Win a Career mode Extreme 1200 season on Champion difficulty
Win a Career mode Extreme 1200 season on Legend difficulty