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| Get Lots of Money | 100% | |
| To use this code, start a new career and pick your driver, then enter the following code: L1, L1, L1, L1, L1, L2, L2, L2, L2, L2, R1, R1, R1, R1, R1, R2, R2, R2, R2, R2, L1+R1+L2+R2. | ||
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| Unlock Fast Oval Race | 100% | |
| To unlock the oval for a mega-speedy race, enter this code at the title screen: L1, L2, L1, R1, L1, R2, L1+R1, L2+R2. Enjoy the speed on the Oval. | ||
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| Unlock Infinite Shields | 96% | |
| To unlock infinite shields, pause the game and press L1+R1, L2+R2, L1+L2, R1+R2. Enter the code again to turn it off. | ||
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| Unlock Infinite Ammo | 96% | |
| To unlock infinite ammo, pause the game and press L2, R2, L1, R1, L2+R2, L1+R1. This will give you unlimited ammo. Enter the same code to turn it off. | ||
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| Unlimited Turbo | 96% | |
| To get unlimited turbo, go the the title screen. Press R1+L1, R2+L2, R1+L1, R2+L2. When the code is entered correctly, you get a message confirming entry. | ||
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| Unlock all Tracks | 96% | |
| To unlock all of the tracks in the game, go to the MAIN MENU and press L1, L1, L2, L2, R2, R2, R1, R1, then L1+R1+L2+R2. If the code is entered correctly, a message will appear. | ||
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| All teams | 33% | |
| L1 l2 o o x l1 r1 r2 | ||
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Extreme G3 takes players on a gravity-defying race upon massive tracks that range from beneath earth’s surface up into the boundaries of space. After climbing onto one of 12 supercharged and fully armed bikes and engaging the protective shield, players are ready to begin the ultimate in racing challenge. 
