To Unlock

Code

Drag Tracks

Right - Z - Left - R - Z - L - Y - X

Drift Physics

R Button - Up - Up - Up - Down - Down - Down - L Button

Drift Tracks

Left - Left - Left - Left - Right - X - R - Y

Sprint Tracks

Up - X - X - X - R - Down - Down - Down,

Unlocks all Circuit Tracks.

Control Pad Down - R - R - R - X - X - X - Z