Extreme-G 3 Cheats - GameCube

Unlimited shields and turbos
Press [L] + [R], [Z], [L] + [R], [Z] after "Press Start" appears at the title screen. A message will confirm correct code entry. Note: This effect lasts for only one race and must be re-enabled before the next one.

Unlimited ammunition and StarCom team
Press [L], [R], [L], [R], [L] + [R], [Z] after "Press Start" appears at the title screen. A message will confirm correct code entry. Note: This effect lasts for only one race and must be re-enabled before the next one.

Always win XG career mode races
Press [R], [L], [Z], [L], [R], [Z], [R], [L], [Z] after "Press Start" appears at the title screen. A message will confirm correct code entry. This allows you to win a race no matter if you quit, lose, or die. Note: This effect lasts for only one race and must be re-enabled before the next one.

Win next race
Press [L] + [R] + [Z], [L] + [R], [Z], [L] + [R] + [Z] after "Press Start" appears at the title screen. A message will confirm correct code entry. Note: This effect lasts for only one race and must be re-enabled before the next one.

Win all races
Press [L] + [R], [Z], [L] + [R] + [Z] after "Press Start" appears at the title screen. A message will confirm correct code entry. Note: This effect lasts for only one race and must be re-enabled before the next one.

Double prize money
Press [L], [R], [Z], [L], [R], [Z], [L] + [R] after "Press Start" appears at the title screen. A message will confirm correct code entry. Note: This effect lasts for only one race and must be re-enabled before the next one.

Extreme lap challenge
Press [L], [R], [L], [R], [L], [R], [Z], [L] + [R] at the main menu. A message will confirm correct code entry. This unlocks an oval track for maximum speed. Note: This effect lasts for only one race and must be re-enabled before the next one.

All teams and tracks
Press [L]x2, [R]x2, [Z]x2, [L] + [R] + [Z] after "Press Start" appears at the title screen. A message will confirm correct code entry. Note: This effect lasts for only one race and must be re-enabled before the next one.

StarCom team
Successfully complete the game in XG Career mode.

Alternately, successfully complete the game and win every trophy to unlock the Robotic team, StarCom.

Quick start
To get a jump start when you begin a race, hold [Forward] during the countdown without pressing "Gas". As soon as ''Go" appears, hit the accelerator.

Hold [Forward] without pressing the "Gas". As soon as "Go" appears, press [A] + [X] for a small turbo.

Super boost
To make your bike go the fastest that it can ever go, make sure you have the Rear Blasters weapon. Then, activate your boosters by pressing [A] + [X]. Then, use your Rear Blasters at the same time by pressing [A] + [X] + [Y]. By doing this, you will boost much faster. Note: To get the best results, also enable the "Unlimited shield and turbos" and "Unlimited ammunition and StarCom team" codes.

Break the sound barrier
Reach a speed of at least 750 mph to break the sound barrier. Enable the "Unlimited shield and turbos" code to make this easier to accomplish.