Cheats for 18 Wheeler: American Pro Trucker (DC)

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

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.

Play as Nihonmaru
Successfully complete arcade mode with all four characters to unlock Nihonmaru.