[PS2] Need for Speed Underground 1 Cheats

In this topic, basically post certain cheat codes, tips, walkthroughs and anything to do with Need for Speed Underground 1.

Burger King challenge:
At the title screen, enter: Up, Down, Up, Down, Left, Right, Left, Right.

Ford GT (Castrol Syntec version):
At the title screen, enter: Left, Right, Left, Right, Up, Down, Up, Down.

Marker in backroom at One-Stop shop:
At the title screen, enter: Up, Up, Down, Down, Left, Right, Up, Down.


These are just a few of the cheats I know, but post more if you know any.