Go to the "Options" menu, then select "Cheats" and enter one of the following codes:
All bonuses: 2468G0A7
All tracks: BA7H
All FMV sequences: 23F7IC5
Very fast acceleration: JIH345
Maximum air: BFB0020
Left Field gear: 12345
Sobe gear: 50B3
Butterfinger gear: B77393
Sky camera: HIC
Nokia trickbot: HA79000
Officer Dick: BADG3
Slipknot Maggot: 86657457
Speed Demon: 773H999