To give all characters “helium” voices that make them talk extremely high, insert the following cheat at the in-game Options menu: Minus, Up, Minus, 2, Minus, Up, Minus.
Head to the in-game cheats menu and insert the following button combination for complete invincibility: A, B, A, Up, Left, Down, Right.
To make your opponents extremely small, insert the following cheat at the in-game Options menu: B, A, Left, Down, Minus, Up, Minus.
To cause the maximum amount of damage each time you attack an opponent’s car, insert the following cheat at the in-game Options menu: A, Minus, Plus, Down, Up, Plus, 1.
To turn your own race car into a monster truck, insert the following cheat at the in-game Options menu: B, Up, Minus, 2, B, Up, Minus.
You can make your opponents both overly-passive and overly-aggressive. To do so, first head to the Options screen and then go to Enter Code. To make your opponents passive, insert: Up, Right, Down, Left, Up, Right, Down. To make your opponents aggressive, insert: Up, Left, Down, Right, Up, Left, Down.
To unlock the following characters below in Class 1, complete the championship number listed.
To unlock the following characters below in Class 2, complete the championship number listed.
By defeating all of the championships in the game, you will unlock Class 4 races (called Mirror Mode). Keep in mind that whenever you defeat a Class 4 (Mirror Mode) race, you will get a cheat code.