18 Wheeler: American Pro Trucker Codes -

$999 by hitting bonuses:
Hit a bonus head first, then press + + . You will get the maximum amount of $999. REMEMBER: This must be repeated each time.

Nippon Maru:
Press and hold and push in the title screen. Keep held until the mode selection screen appears. Choose any mode to drive the Nippon Maru truck. Or finish arcade mode with all four trucks.