Unlock all tracks
triangle, right, R1+L1, +O, L2+O
Unlock all bikes
L2+, L1+right, L2+O, L1+left
Unlock all riders
right, L1+right, down, L1+left, right, O
Unlock all everything
triangle, L1+left, , triangle, L1+right, R1+down, R1+right, select
Unlock all platforms
L1+up, right, R1+, L2+left, R1+left, O, right, R2+up,
Unlock all ramps
right, R1+, R2+up, L1+left, right,
Unlock all barriers
L2+, R1+, right, right, L1+right, L1+left, right,
Unlock all obstacles
O, L2+, , L2+left, R1+, L1+O, left, L1+left,
Unlock 250cc Freestyle
up, L1+up, , L1+right, L2+down, L1+left