|Additional Paint Colors|
While painting your logo, move the pointer out of the painting area. Then, hold L1 + L2 + R1 + R2 + Select. Now additional boxes labeled R, G, and B will appear on the right side of the painting area. The numbers represent the amount of that hue (red, green, or blue) for the specific color on which the cursor is resting. Press Left or Right and R1 + Up or R1 + Down to change colors. Repeatedly tap Select when the RGB boxes are on the screen to display the guide markers in the painting area.
|Alter Car View|
While in the car select screen, press L2 + R2 to steer the front wheels.
|Alter Track View|
While in the track select screen, press L1 + R1 to spin the car and track faster or slower.
Move the cursor onto the painting area and press L1 + L2 + R1 + R2 + Select. A targeting cross-hair will appear in the smaller picture view area.
|Rear View Mirror|
Pause the game and press Triangle + L1 or Triangle + R1 to remove the rear view mirror. Repeat the code to restore the mirror.
Select the "Race Start" option and hold L1 + R1 + Select + Start until the race begins. Then, the track will be a mirror image of the originally selected track.
Keep the cursor in the logo painting area and hold L1 + R1 + D-pad to rotate and flip your logo.
Complete the Normal GP mode game (all classes) and allow the credits to complete. Then, save the game in a new slot. Play Extra GP mode, class 1, and select the only car available. Select the "Race Start" option and press Start during the countdown prior to the start of the race. Select the "Retire" option to quit without using an attempt. Now enter Normal GP mode again, and select class 1 for unlimited money.