USA Extreme bike: Press Right, Up, B, B, A, B, Up, B, B, A at the "Game Mode" screen.
Achievements: Here are the 360 Achievements that can be unlocked by completing the tasks below, the pts after the - sign is the amount of points you earn for each:
Challenge Expert - 30 pts 50 challenges completed
Challenge Master - 60 pts All challenges completed
Extreme Bike Collector - 50 pts Purchase all extreme bikes
GP Champion - 60 pts Win career mode grand prix season on champion difficulty
GP Professional - 30 pts Win a career mode grand prix season on pro difficulty
GP Legend - 100 pts Win a career mode grand prix season on legend difficulty
Seeded #1 - 75 pts Seed #1 achieved
Seeded #10 - 50 pts Seed #10 achieved
Seeded #25 - 30 pts Seed #25 achieved
Seeded #50 - 20 pts Seed #50 achieved
Seeded #75 - 15 pts Seed #75 achieved
Seeded #90 - 10 pts Seed #90 achieved
Stunt Mode Rider - 10 pts Win a Stunt Mode game in any multiplayer mode
Extreme Mode Champion - 10 pts Win any extreme mode championship at any difficulty
Extreme 1000 - Legend - 60 pts Win a career mode extreme 1000 season on legend difficulty
Extreme 1200 - Champion - 50 pts Win a career mode extreme 1200 season on champion difficulty
Extreme 1200 - Legend - 75 pts Win a career mode extreme 1200 season on legend difficulty
Extreme 1200 - Professional - 25 pts Win a career mode extreme 1200 season on pro difficulty
Extreme 600 - Legend - 30 pts Win a career mode extreme 600 season on legend difficulty
Accredited - 100 pts All rider credits awarded
GP Rookie - 10 pts Win a career mode grand prix season on rookie difficulty
