Unlock the following characters by perfomring the corresponding tasks:

CHARACTER - HOW TO UNLOCK
Bam Margera - Complete all of the goals he assigns to you.
Bob Burnquist - Complete all of the goals he assigns to you.
Daewon Song - Complete the goal he assigns you.
Dustin Dollin - Defeat him as Stevie Williams
Lyn-Z Adams Hawkins - Defeat her as Nyjah Huston
Mike Vallely - Complete all of the goals he assigns to you.
Nyjah Huston - Defeat him as Lyn-Z Adams Hawkins
Paul Rodriguez - Complete all of the goals he assigns to you.
Pro Bails 2 - Finish the game with 100% completion.
Rodney Mullen - Complete the goal he assigns you.
Ryan Sheckler - Complete all of the goals he assigns to you.
Stevie Williams - Defeat him as Dustin Dollin.