Select start at the title screen, then enter these codes at the mode select screen....

(note : These codes will have no affect on gameplay + just re-enter them to disable the cheats)
No drones : Square x2, O x2, L1, R1
, START
Catchup code : O, Square, O x2, Square, START
(note : When you use this cheat other riders catch you up quicker)
Snowball power-ups : Square x3, L1, O, Start
Grappling hook power-ups : O x2, L2, O x2, L1, START
Rooster power-ups : R1, R2, L2, L1, Square, START