Extreme G3 (PS2)

These two cheats must be entered before each race.

Infinite turbo and shields
L1+R1, L2+R2, L1+L2, R1+R2.

Infinite ammo
L2, R2, L1, R1, L2+R2, L1+R1.

All tracks
At the main menu, press L1(x2), L2(x2), R2(x2), R1(x2), L1 + R1 + L2 + R2.

Always win XG career races
At the main menu, press L1 + R1 + L2 + R2, L2 + R2, R1 + R2, L1 + R1 + L2 + R2.

Extreme lap challenge
At the main menu, press L1, L2, L1, R1, L1, R2, L1 + R1, L2 + R2.

Double prize money
At the main menu, press L1 + L2, R1 + R2, R1 + R2, L1 + L2.