At the main menu, hold L1 + L2 + L3 + R1 + R2 + R3 + Left Analog-stick Down + Right Analog-stick Up to unlock all bonuses. If you entered the code correctly, you will hear a sound. Note: Enabling this cheat will disable any further progress in the game. If you win a race, it will not count.
Single player mirror mode
Pause the game and hold L1 + L2 + L3 + R1 + R2 + R3 + Left Analog-stick Right + Right Analog-stick Left. If you entered the code correctly, you will hear a sound.
Big head mode
Pause the game and hold L1 + L2 + L3 + R1 + R2 + R3 + Left Analog-stick Left + Right Analog-stick Right. If you entered the code correctly, you will hear a sound.
Remove dirt and mud
When there is dirt or mud on the screen, quickly press View (Triangle) twice to remove it. -From: Shivam Sanathra
To make any vehicle go faster (you must let your boost charge), keep tapping X while driving. This will make any vehicle go faster and not use boost. -From: eslowrider1
Use the following trick for an extra boost that can help you win at the end of a race. When the finish line is fairly close, make sure your boost meter is almost full, then use the boost. Do not stop holding on the boost and your car will began to heat up. After the meter is all the way to the end, your car will explode, launching you a good distance forward at an extremely high speed.
When on any track with big or long jumps, hold the D-pad in any direction and your vehicle should do a flip in that direction.
At any point on a track, hold L2 + R2 and press Circle. Release Circle and you should be doing a burnout. This does not work with some vehicles. The best vehicle is the Rally Car. The best terrain is in the mud. Note: This was done with the controller 1 setup.
Drive in front of an opponent while going through the mud. Your opponent will be blinded and may crash or go off course.
The dirtbike and quad are the two most controllable vehicles due to their ability to ride along the walls with ease.
In some races there are big screens on the sides of the track that show your vehicle racing. However, if you pause the game in front of one of these screens and rotate the camera, the screen displays this even though the game is paused.
Before a race when you see the front of your car or bike, notice the banner that reads “Free The Runcorn”. Runcorn is the town in the U.K. where the game was created.