Here is the full list of all 31 2Xtreme trophies - there are 14 bronze, 10 silver, 6 gold and 1 platinum.
Unlock all trophies in 2Xtreme.
Complete all three Los Angeles courses.
Complete all three Las Vegas courses.
Complete all three Africa courses.
Complete all three Japan courses.
Complete and win a season.
Finish a race with a Gates score of 1000 or more.
Finish a race with a Gates score of 2000 or more.
Finish a race with a Gates score of 3000 or more.
Finish a race with a Tricks score of 250 or more.
Finish a race with a Tricks score of 450 or more.
Finish a race with a Tricks score of 1000 or more.
Finish a race with a Knockdowns score of 150 or more.
Finish a race with a Knockdowns score of 450 or more.
Finish a race with a Knockdowns score of 900 or more.
Finish a race with an overall score of 7500 or more.
Finish a race with an overall score of 10000 or more.
Finish a race with an overall score of 15000 or more.
Set 3 Score or Time records.
Set 6 Score or Time records.
Set 12 Score or Time records.
Finish a race without passing through any score Gates.
Finish a race without performing any tricks.
Finish a race without any Knockdowns.
Create and save a custom character.
Finish a race with a character that has an attribute of 0 Muscle.
Finish a race with a character that has a 0 in all attributes.
Use every power-up in a race.
Pass through every type of Gate in a race.
In a race, achieve a top speed of 64mph.
In a race, achieve a top speed of 72mph.