ESPN X Games Skateboarding

Change characters:
Go to the character selection screen and hold R1, R2, L1, or L2.

Levels
At the title screen press
UP, UP, UP, DOWN, DOWN, DOWN, UP, DOWN, UP, DOWN, UP, DOWN, L1, R1.

Unlock Hard mode
Collect all 36 licenses in arcade mode in normal difficulty level, after
go to the stage selection screen and press Circle.

Unlock Big head mode
Collect 30 licenses in arcade mode in normal difficulty level with
any character, after go to the stage selection screen and press Square + X.

Cartoon board
Win 1st place five times in the Street Competition in X-Games mode

Horror board
Win 1st place five times in the Vert Competition in X-Games mode

Hoverboard
Unlock hard mode, after finish all 6 licenses on the Ruins level
in hard mode