Initial D: Extreme Stage

Cheat Codes

Press L1 + R1 + Triangle at the "Sound Test" menu to unlock two bonus songs.
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Complete the indicated task to unlock the corresponding races. Note: You must defeat all your rivals in order to unlock the final three races.

Bunta Fujiwara at Akina Downhill: Defeat Project D Takumi at Tsukuba.

Project D Keisuke at Tsukuba: Defeat all available rivals.

Project D Takumi at Tsukuba: Defeat Project D Keisuke at Tsukuba.

Strategy guides from GameFAQs