Ride 25 km without falling (in completed missions).
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Perform each trick (except Balance and Slide) 10 times in completed missions.
Increase score multiplier to 20 or more for both players in Split Screen simultaneously (you don't have to score points).
Earn all souvenirs (in original game).
Win 10 times (gold medal + all additional goals) in a row in any different single player missions.
Score points with multiplier that equals to 50 or higher.
Win all game missions (in original game).
Earn 12 souvenirs.
Spend 1 hour in the air in completed missions.
Earn gold medals in any 10 missions.
Spend 5 minutes balancing in completed missions.
Maintain the &S& rating for overall 10 minutes throughout the game (in completed missions).
Collect 100 stars in a single Action Chain.