Unlock Everything
Enter the name 'PASWRD'.

Jimmy Sweetlove and Lunar level
Successfully complete lifestyle mode with any character to unlock Jimmy Sweetlove and the Lunar level.

Chucky Mulgrave and Hades level
Successfully complete stunt mode to unlock Chucky Mulgrave and the Hades level

Mad Mike Hoolign
Successfully complete MTV hunt mode to unlock Mad Mike Hooligan.

Ted "E" Bear
Successfully find all the skateboard icons in MTV Hunt mode to unlock Ted "E" Bear.

Alternate costumes and bonus skateboards
Successfully complete any level to unlock an additional costume and another skateboard.