There’s an unlockable skate park in the game called Danny Way’s Mega Park. To unlock it, you must advance through all video and photo shoots that are relevant to achieving full sponsorship. Full sponsorship entails board, truck, and wheel sponsorship.

After you achieve full sponsorship status, you will receive an invitation to Danny Way’s Mega Park. You’ll need to compete there - and win - in order for it to be fully unlocked to use at any time. (unverified)

To unlock the Plan B Warehouse, beat Ryan Gallant’s pro challenge.

To unlock the special Best Buy clothing, type the following code in at the main menu: up, down, left, right, X, right bumper, Y, left bumper.

You can unlock a hidden character called Dem Bones by breaking each bone in your current character’s body three times. Check the injury log to peek at your progress.