18 Wheeler: American Pro Trucker

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.

Ice cream trailer:
Hold L + R + X + A + B + Y + Start at the trailer selection screen.

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.

Nippon Maru:
Successfully complete arcade mode with all four characters.

Lizard Tail:
Successfully complete the game with all five trucks (Asphalt Cowboy, Stream Line, Long Horn, Highway Cat, and Nippon Maru).

Bonus trailers:
Successfully complete arcade mode with all four characters to unlock two bonus trailers in score attack mode, versus mode, and arcade mode (if the Nippon Maru is selected).

Hint: Bonus parts:
Go to arcade mode and select any truck. Get to your destination ahead of your rival , then complete the bonus parking mini-game to win bonus parts. Note: This works on any destination.
Information in this section was contributed by MARKBETTIE.

Hint: Shifting:
For Highway Cat and Stream Line, shift up when at about 50 mph.

Hint: Slip stream:
When you are behind a truck, your size you will get a slip stream. This will allow you to get a small boost to get in front of the truck.
Information in this section was contributed by Cheater.