18 WHEELER: AMERICAN PRO TRUCKER CHEATS

DC

Cheat mode:
Hold L and press A, Y, X, B, Left, Start at the main menu to unlock all trucks, all tracks, and disable the timer.

Full pause screen:
Press Start to pause game play, then press A + X + B + Y.

Bonus parking levels:
Successfully complete each of the four parking levels to unlock an additional parking level. Successfully complete the bonus parking level to unlock a sixth parking level.

Nihonmaru (Japanese version):
Successfully complete arcade mode with all four characters.