Advance GTA 2 - Gameboy Advance
Go to the screen with Start and a picture of the car.
Hold B + L, then press Left until a chime is heard.
All tracks:
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Go to the screen with Start and a picture of the car.
Hold B + L, then press Right until a chime is heard.
All tune ups:
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Go to the screen with Start and a picture of the car.
Hold B + L, then press Up until a chime is heard.
Extra modes:
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Go to the screen with Start and a picture of the car.
Hold B + L, then press Down until a chime is heard.
All three extra modes will not be unlocked.
View credits:
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Go to the screen with Start and a picture of the car.
Hold B + L, then press Up + B to view the ending credits.